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Bithynia
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Explore Bithynia in Türkiye through İznik’s Byzantine heritage, Bursa’s Ottoman streets, Marmara lakes and wooded mountain landscapes.

Bithynia is an ancient region rather than a present-day province, occupying much of north-western Anatolia between the eastern Sea of Marmara and the western Black Sea. Its historical core corresponds broadly with parts of modern Kocaeli, Sakarya, Bursa and Yalova provinces, although modern administrative boundaries do not precisely follow the ancient ones. For travellers, Bithynia is best understood as a historical landscape linking İzmit, İznik, Bursa, the eastern Marmara shore and the forested country around the Samanlı Mountains.
Read more about Bithynia
The region combines inland lakes, wooded hills, fertile plains and heavily settled waterways. İznik, ancient Nicaea, stands beside Lake İznik and preserves substantial Roman and Byzantine walls, monumental gates and the former Church of Hagia Sophia, where the seventh ecumenical council met in 787. İzmit, ancient Nicomedia, is a major urban and industrial centre on the Gulf of İzmit, while Bursa, founded as Prusa at the foot of Uludağ, developed into one of the most important cities of north-western Anatolia. Together, these places reveal how Bithynia connected the Black Sea, the Marmara basin and the inland routes towards central Anatolia.
Bithynia's historical importance is unusually varied. It was shaped by indigenous Bithynian and Thracian communities, the Hellenistic kingdom of Bithynia, Roman administration, Byzantine Christianity and the Ottoman rise. Nicaea and Nicomedia both served as imperial centres, and the region's cities preserve layers of Roman baths, Byzantine churches, Ottoman mosques, caravan routes and traditional houses. Bursa's historic districts and nearby Cumalıkızık add an Ottoman dimension to a landscape already rich in classical and late-antique history.
Beyond the cities, travel is shaped by nature. Lake İznik provides quiet waterfront scenery and agricultural landscapes, while Lake Sapanca and the surrounding hills offer walking, cycling and waterside recreation in the eastern part of the historical region. The Samanlı Mountains separate the Marmara coast from inland settlements, and Uludağ above Bursa provides mountain trails and winter sports. Beaches and small coastal resorts occur along the Marmara and Black Sea shores, though the industrialised Gulf of İzmit has a different character from the rural lake districts.
Food reflects the wider north-western Anatolian tradition, with Bursa's İskender kebab, tahini-filled piyaz, chestnut sweets and regional pastries particularly prominent. İznik is also known for its ceramic heritage, while village markets offer olives, fruit, dairy products and seasonal produce. Bithynia rewards an itinerary that moves between historic towns and countryside rather than treating it as a single compact destination; distances, traffic and the modern industrial belt make separate bases in Bursa, İznik, İzmit or the eastern Marmara area practical.

When is the best time to visit Bithynia?

Best: May–June, September · 25–30°C
Average daytime high and rainfall by month
MonthHigh (°C)Rainfall (mm)
January1071
February1165
March1561
April2051
May (best)2541
June (best)3028
July3320
August3322
September (best)2831
October2046
November1456
December1161

Getting to and around Bithynia

How to get there

Bithynia has no single gateway because it is a historical region spread across several modern provinces. Istanbul is the principal international entry point, with road, rail and ferry connections serving the eastern Marmara area; Istanbul lies outside Bithynia but is commonly used to reach it. Bursa can be reached from Istanbul by road and sea-bus services when operating, while İzmit is on the main rail and road corridor east of Istanbul. Bursa Yenişehir Airport is within Bursa province but has a more limited network than Istanbul's airports. Long-distance buses connect Bursa, İzmit, İznik and other regional towns, although routes and schedules change.

Transportation

A car is useful for combining İznik, Lake İznik, Bursa's surrounding villages and mountain areas, as public transport is more frequent between larger towns than to rural sights. Bursa and İzmit have extensive urban bus networks, and intercity buses serve the principal settlements. Local minibuses can connect smaller towns and villages but may be infrequent or difficult to navigate without Turkish. Bursa's metro and tram systems are useful within the city, while ferries and sea-bus services can be practical across the Marmara when available. Allow extra time for traffic around the Gulf of İzmit, Bursa and major holiday routes.

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Best attractions in Bithynia

Bithynia's attractions range from imperial cities and Ottoman foundations to lakes, forests and mountain landscapes. İznik is the leading historical stop, with Roman and Byzantine walls, monumental gates, the former Hagia Sophia and the remains of an ancient theatre, alongside the living tradition of ceramic production. Bursa offers Ottoman mosques, bazaars, baths, tombs and museums, while the nearby village of Cumalıkızık preserves an early Ottoman settlement pattern. İzmit provides urban museums, waterfront views and access to the history of ancient Nicomedia, although much of its modern character is industrial. Lake İznik and Lake Sapanca bring a quieter dimension, with waterside walks, rural scenery and seasonal outdoor activities. Uludağ, above Bursa, is the region's principal mountain recreation area, offering hiking in warmer months and winter sports when conditions permit. Across the eastern Marmara, visitors will also find thermal resorts, village markets, historic cemeteries and agricultural landscapes. The attraction of Bithynia lies in this contrast: major centres reveal the political history of Anatolia, while nearby countryside shows the continuing importance of orchards, lakes, forests and mountain routes.

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Best landmarks in Bithynia

The strongest historic landmark in Bithynia is İznik's circuit of Roman and Byzantine walls, whose gates and towers still define the shape of the old town. Within the walls, Hagia Sophia Mosque occupies a building associated with the 787 council and illustrates the layered religious history of the city. Bursa's skyline is marked by the Green Mosque and Green Tomb, the Great Mosque with its many domes and calligraphic decoration, and the historic khans and covered markets that reflect its period as an Ottoman capital. The remains and setting of ancient Nicaea are complemented by the Roman theatre, while İzmit preserves the memory of Nicomedia through archaeological remains and museum collections rather than one intact ancient cityscape. Cumalıkızık's timber-framed houses and steep lanes provide a more domestic expression of early Ottoman architecture. Natural landmarks are equally important: Lake İznik forms the centre of a broad agricultural basin, the wooded slopes of Uludağ rise above Bursa, and the Samanlı Mountains create a strong physical divide between the Marmara shore and inland settlements. Together these places show how imperial power, religious history, commerce and geography shaped Bithynia.

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Explore Bithynia on the map

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Best restaurants in Bithynia

Food in Bithynia belongs to the broader culinary traditions of north-western Türkiye, but Bursa gives the region its most recognisable specialities. İskender kebab, served with döner meat, tomato sauce, melted butter and yoghurt, is closely associated with Bursa, while tahini-based piyaz and grilled meats are common across the region. Bursa is also known for chestnut sweets, pastries and preserved fruit products, reflecting the orchards and mountain climate around the city. In İznik and the Lake İznik countryside, restaurants and cafés often serve freshwater or seasonal produce alongside standard Turkish dishes, while olive oil, dairy, bread and fruit feature strongly in village markets. Look for breakfast spreads, gözleme, soups, pide and meze in small eateries, and expect tea to accompany much of the day. Kocaeli and the Marmara towns offer fish, seafood and contemporary dining, although the industrial coast is not uniformly a leisure waterfront. Farmers' markets are useful for discovering local vegetables, olives, honey and fruit, while Bursa's established restaurants provide the clearest introduction to the region's culinary identity.

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Best bars in Bithynia

Evening life in Bithynia varies sharply between Bursa's large urban centre, İzmit's Marmara-facing districts and the smaller towns around İznik and the lakes. Bursa has the broadest choice of cafés, restaurants, hotel bars, contemporary venues and live music, with nightlife concentrated in commercial and university areas rather than in one historic quarter. İzmit also offers cafés, restaurants, pubs and bars, especially in busy central and waterfront districts, while Sakarya's larger urban areas have a younger evening scene. In İznik, Lake Sapanca and rural parts of the region, evenings are generally quieter and centre on tea gardens, family restaurants, cafés and accommodation with lake or mountain views. Traditional Turkish meyhanes, where food accompanies drinks and conversation, can be found in larger towns, but alcohol is not central to every local social setting. Opening times, venue status and seasonal activity change frequently, so local listings and hotel recommendations are more reliable than assuming a permanent club scene.

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Best nightclubs in Bithynia

Evening life in Bithynia varies sharply between Bursa's large urban centre, İzmit's Marmara-facing districts and the smaller towns around İznik and the lakes. Bursa has the broadest choice of cafés, restaurants, hotel bars, contemporary venues and live music, with nightlife concentrated in commercial and university areas rather than in one historic quarter. İzmit also offers cafés, restaurants, pubs and bars, especially in busy central and waterfront districts, while Sakarya's larger urban areas have a younger evening scene. In İznik, Lake Sapanca and rural parts of the region, evenings are generally quieter and centre on tea gardens, family restaurants, cafés and accommodation with lake or mountain views. Traditional Turkish meyhanes, where food accompanies drinks and conversation, can be found in larger towns, but alcohol is not central to every local social setting. Opening times, venue status and seasonal activity change frequently, so local listings and hotel recommendations are more reliable than assuming a permanent club scene.

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Best shops in Bithynia

Shopping in Bithynia is strongest in historic market districts, covered bazaars, town high streets and food markets rather than in a single region-wide retail centre. Bursa's hans and covered markets are the most historically significant places to browse for textiles, scarves, leather goods, household items, sweets and packaged foods, while the city's association with silk remains visible in fabrics and craft shops. İznik is the natural place to look for ceramic bowls, tiles and decorative objects inspired by Ottoman designs; visitors should ask about contemporary workshop production and provenance when buying pieces presented as historic or antique. Local markets around the lake districts offer seasonal fruit, olives, honey, cheese and village produce, although market days vary between towns. İzmit, Bursa and larger urban centres have modern shopping districts and shopping centres for national brands, but smaller settlements are better for independent grocers, bakeries and practical local goods. Regional food products, Turkish coffee, tea, confectionery and spice mixtures make portable souvenirs, while antiques and old ceramics should be purchased carefully and never removed from the country without understanding applicable cultural-property rules.

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Bithynia essentials

Currency and Payment
The currency is the Turkish lira, written as TRY or TL. Cards and contactless payments are widely accepted in hotels, supermarkets, transport hubs and established restaurants in Bursa, İzmit and other larger towns. Carry some lira for small cafés, village markets, local minibuses, public toilets and small businesses around lakes or rural heritage sites. Foreign currency should not be relied upon for everyday purchases, and visitors should use reputable exchange offices or banks rather than informal exchangers. Payment practices can be more cash-oriented outside the main urban centres.
Safety
Normal urban precautions are appropriate in busy transport areas, markets and crowded historic districts. The principal regional risks are practical: heavy traffic, seismic activity, hot summer conditions, slippery paths around lakes and changing weather in the mountains. Follow local warnings before walking in forested or high-altitude areas, particularly around Uludağ and the Samanlı Mountains. Swim only where conditions and supervision are suitable, as not every shoreline is managed as a public beach. When driving, allow for congested roads and variable standards on smaller rural routes.
Emergency Situations
Dial 112 in Türkiye for police, fire and ambulance emergencies; operators may be able to assist in languages other than Turkish, though this cannot always be assumed. The number also coordinates emergency medical response, while coastguard assistance is relevant on the Marmara and Black Sea shores. Earthquakes are an acknowledged regional hazard, so visitors should follow hotel instructions, keep away from damaged buildings and check official alerts after any tremor. For outdoor emergencies, give a precise location, use recognised trails where possible and ask accommodation staff or local authorities for assistance.
Do's and Don'ts
Dress modestly when visiting mosques and mausoleums, remove shoes when requested and avoid entering during prayer unless clearly permitted. Ask before photographing people, workshops or religious ceremonies. In markets and smaller towns, greet shopkeepers politely and do not assume that bargaining is appropriate in every shop. Keep to marked paths at archaeological sites, do not climb historic walls and avoid touching mosaics, inscriptions or ceramics. Tipping is customary but discretionary in restaurants and cafés, while service charges should be checked before adding more.
Local Tips
Visit İznik early if you want to walk its walls and central monuments in a quieter atmosphere, then leave time for the lakeside and ceramic workshops. Bursa's major Ottoman monuments are best explored on foot in connected historic districts, but the mountain and village areas require separate journeys. Winter can bring snow to Uludağ while lower cities remain milder, and lake districts are especially pleasant in spring and autumn. Learn a few Turkish place names and food terms, as this makes rural transport, market shopping and ordering regional specialities considerably easier.
Eve, your Evendo local guide

From Eve

Local phrases worth knowing

You don't need to get them perfect. A few words go a long way, and locals appreciate the effort.

6 phrase groups · English, local and pronunciation

Basics
EnglishLocalSay it
HelloMerhaba[mehr-HAH-bah]
GoodbyeHoşça kal[hosh-CHA kahl]
YesEvet[EH-vet]
NoHayır[HAH-yuhr]
Please/You're welcomeLütfen/Rica ederim[LEWT-fen/ree-JAH eh-DEH-rim]
Thank youTeşekkür ederim[teh-shehk-KOOR eh-DEH-rim]
Excuse me/SorryAffedersiniz/Üzgünüm[ah-feh-DEHR-sin-iz/OOZ-goo-noom]
How are you?Nasılsınız?[NAH-suhl-suhn-uhz]
Fine. And you?İyiyim. Siz nasılsınız?[EE-yee-yim. SIZ nah-suhl-suhn-uhz]
Do you speak English?İngilizce biliyor musunuz?[een-GHEE-leez-jeh bee-LEE-yor moo-SOO-nuhz]
I don't understandAnlamıyorum[ahn-lah-MEE-yor-uhm]
Eating & Drinking
EnglishLocalSay it
I'd like to see the menu, pleaseMenüyü görmek isterim lütfen[meh-NOO-yoo GOHR-mehk ees-TEH-rim LEWT-fen]
I don't eat meatEt yemiyorum[et yeh-MEE-yor-uhm]
Cheers!Şerefe![sheh-REH-feh]
I would like to pay, pleaseÖdemek isterim lütfen[uh-DEH-mehk ees-TEH-rim LEWT-fen]
Emergencies
EnglishLocalSay it
Help!Yardım edin![YAR-duhm EH-deen]
Go away!Defol![DEH-fol]
Call the Police!Polisi arayın![poh-LEE-see ah-RAH-yin]
Call a doctor!Bir doktor çağırın![beer dok-TOR chah-UH-ruhn]
I'm lostKayboldum[KAHY-bold-oom]
I'm illHastayım[HAS-tah-yim]
Shopping
EnglishLocalSay it
I'd like to buy...Satın almak istiyorum...[sah-TUHN al-MAHK ees-TEE-yor-oom]
I'm just lookingSadece bakıyorum[SAH-deh-jeh bah-KIY-or-uhm]
How much is it?Bu ne kadar?[boo NEH kah-DAHR]
That's too expensiveBu çok pahalı[boo CHOK pah-HAH-luh]
Can you lower the price?Fiyatı düşürebilir misiniz?[fee-YAH-tuh DOO-shee-reh-BEEL-eer MEE-sin-iz]
Time & Numbers
EnglishLocalSay it
What time is it?Saat kaç?[sah-AT kahch]
It's one o'clockSaat bir[sah-AT beer]
Half past (10)Onu geçiyor[OH-noo GEH-chee-yor]
MorningSabah[sah-BAH]
AfternoonÖğle[UR-leh]
EveningAkşam[ahk-SHAHM]
YesterdayDün[DOON]
TodayBugün[boo-GOON]
TomorrowYarın[YAH-ruhn]
1Bir[beer]
2İki[ee-KEE]
3Üç[OOSH]
4Dört[DURT]
5Beş[BESH]
6Altı[AL-tee]
7Yedi[YED-ee]
8Sekiz[SEH-keez]
9Dokuz[DOH-kooz]
10On[ON]
Transport & Directions
EnglishLocalSay it
Where's a/the...?Nerede bir...?[NEH-reh-de beer]
What's the address?Adres nedir?[AH-dress NEH-deer]
Can you show me (on the map)?Haritada gösterebilir misiniz?[har-EE-tah-dah GOES-teh-reh-BEEL-eer MEE-sin-iz]
When's the next (bus)?Bir sonraki (otobüs) ne zaman?[beer SOHN-rah-kee oh-toh-BUHS NEH zah-MAHN]
A ticket (to ....)Bir bilet (....)[beer bee-LET]

History of Bithynia

Early Bithynian Kingdoms and Greek Settlements

Bithynia was inhabited by peoples associated with Thracian migration and developed as a recognised kingdom in north-western Anatolia during the Hellenistic period. Greek colonies and trading settlements on the Marmara and Black Sea shores connected the region to wider Aegean and Pontic networks. Nicomedia, Nicaea and Prusa later became major urban centres, but their foundations belong to a landscape in which local rulers, Greek-speaking communities and neighbouring Anatolian powers interacted. The kingdom retained a distinct political identity until it was bequeathed to Rome in the first century BC.

Roman Province and Imperial Nicomedia

Rome incorporated Bithynia into its provincial system after the last Bithynian king, Nicomedes IV, left his kingdom to the Roman state in 74 BC. Nicomedia, modern İzmit, became one of the leading cities of the eastern Roman world and was favoured by Diocletian, who made it an imperial residence in the late third century. Roads, harbours, civic buildings and bath complexes strengthened the region's role as a bridge between the Balkans, the Marmara and inland Anatolia. The Roman legacy remains visible in archaeological remains and in the urban importance of the region's principal cities.

Nicaea and the Christian Councils

Nicaea, modern İznik, became central to the history of Christianity under the Roman and Byzantine empires. The First Council of Nicaea met there in 325 under Emperor Constantine and addressed major disputes within the early Church, producing the formulation that developed into the Nicene Creed. A second ecumenical council met in the city in 787. İznik's walls, gates and surviving religious buildings reflect its long importance as a fortified urban centre on routes linking Constantinople with western and central Anatolia.

Byzantine Frontier and the Rise of Prusa

After the division of the Roman Empire, Bithynia remained a valuable Byzantine region, but its position made it vulnerable to raids and changing political frontiers. Prusa, modern Bursa, lay at the foot of the mountain routes leading towards the interior and became increasingly important as Turkish powers advanced into north-western Anatolia. Byzantine fortifications and religious foundations survived alongside new settlements and agricultural communities. The landscape around İznik and Bursa therefore preserves evidence of a period when imperial, local and emerging Turkish political structures overlapped.

Ottoman Bursa and the Formation of an Empire

The Ottoman capture of Bursa in 1326 transformed the city into the first major Ottoman capital. Under Orhan and his successors, Bursa became a centre of administration, learning, trade and religious patronage, with mosques, tombs, charitable complexes, markets and baths shaping the urban fabric. Its position near silk-producing areas and routes across north-western Anatolia encouraged commercial growth. Although the capital later moved to Edirne and Constantinople, Bursa retained exceptional symbolic importance in Ottoman history, and many of its principal monuments date from this formative period.

Iznik Ceramics and Ottoman Craft Production

İznik became internationally associated with finely decorated Ottoman ceramics, particularly from the sixteenth century when court-supported workshops produced dishes, tiles and architectural decoration in distinctive blue, turquoise and later red palettes. These ceramics were used in imperial buildings far beyond the town itself, especially in Istanbul. The industry declined over time, but the name of İznik remains attached to one of the most influential ceramic traditions of the Ottoman world. Contemporary workshops and museums help visitors understand this legacy, although modern production should not be confused automatically with surviving historical pieces.

Industrialisation and the Modern Marmara Corridor

From the late Ottoman period and especially during the twentieth century, the Gulf of İzmit and the eastern Marmara corridor became major zones of transport, manufacturing and population growth. Railways, highways, ports and industrial plants connected Kocaeli and Sakarya with Istanbul, Bursa and the interior. This transformation brought economic opportunity but also reshaped coastlines, farmland and older settlements. The 1999 İzmit earthquake was a major modern historical event, causing extensive loss across north-western Türkiye and influencing building standards, urban planning and public awareness of seismic risk throughout the region.

Bithynia in Photos

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Evendo: Your Ultimate Travel Guide to Bithynia, Turkiye

Discover Bithynia with Evendo - a 100% free app-based travel guide. Explore attractions, landmarks, restaurants, and more, all in one place.

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Plan your dream trip to Bithynia with Evendo, the ultimate 100% free travel guide app. Discover top attractions, book experiences, and explore like a local.

  • Comprehensive history of Bithynia and travel essentials
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  • Curated local tips to experience the city like a local
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Imagine strolling through the ancient lands of Bithynia, Turkiye, guided by the most comprehensive travel companion - Evendo. With this 100% free app, you can uncover the rich history of Bithynia, from its iconic landmarks like the Temple of Augustus to the breathtaking views from Mount Olympus.

Evendo provides detailed information on all the best attractions, landmarks, shops, bars, nightclubs, restaurants, hotels, tours, experiences, and activities in Bithynia. Each location comes with a rich set of information, including images, descriptions, local tips, maps, and contact details, making it easy for you to plan and organize your trip seamlessly.

Fancy a culinary adventure? Discover some of the finest dining spots such as the renowned 'Green Valley Restaurant' or enjoy the vibrant nightlife at 'Eternal Club'. With Evendo, you can easily book hotels, tours, tickets, and experiences directly from the app, eliminating the hassle of planning your itinerary.

Explore the historical remnants at the ancient city of Nicaea, take a serene boat ride on Lake Iznik, or simply wander through the charming streets of Bursa. The 'Near Me' feature ensures you never miss out on nearby attractions and local gems, while curated local tips help you experience Bithynia like a true local.

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