Zerostrasse: Pula's Subterranean World

Zerostrasse, meaning 'Zero Street' in German, is a fascinating network of subterranean tunnels located beneath Pula. Constructed during World War I when Pula was a strategic naval base for the Austro-Hungarian Empire, these tunnels served as shelters for the city's residents during air raids. The extensive system stretches for approximately 400 meters, connecting various parts of the city and providing sheltered routes.Today, Zerostrasse is open to the public, offering a unique historical experience. Visitors can explore the tunnels, which maintain a constant temperature between 14 and 18°C. The tunnels' corridors, ranging from 3 to 6 meters wide and approximately 2.5 meters high, could accommodate up to 6,000 people. The four entrances are positioned to ensure constant airflow.Located beneath Kaštel Hill, Zerostrasse also provides access to the Historical and Maritime Museum of Istria via an elevator. The tunnels have been repurposed with lighting to improve accessibility and showcase their heritage. Exploring Zerostrasse offers a unique perspective on Pula's history and provides a cool respite from the Istrian sun.