Flak Towers
Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons in Vienna.

📜 Monumental concrete fortresses from WWII in Vienna.
🔍 Built as anti-aircraft gun platforms and air raid shelters.

Why Go

🏛️ Explore massive WWII structures
🐦 Observe thousands of pigeons inhabiting the towers
🐠 Visit Haus des Meeres, an aquarium located in one tower
🚶 Easily accessible by public transport

Why Avoid

🚫 Most towers are disused and not open to the public

Tips

💡 The Flak Tower in Esterházypark houses the Haus des Meeres aquarium, offering guided tours.

Hours

🕒 Haus des Meeres: Daily 10am-6pm, Thursdays until 9pm.

Last updated 10 days ago

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