The shape of the building that houses Haus des Meeres (House of the Sea) in Vienna, Austria, looks like an odd choice for an aquarium and a zoo – a rectangular box of concrete with a tent-like green house on one side, no windows on the other three sides, and circular platforms sticking out on all sides from the roof deck.
That’s because the building was repurposed – it was originally an anti-aircraft and gun tower during WWII, with a radar that could be lowered into the concrete tower and protected. The round platforms on all four sides on the roof deck was where the aircraft guns stood.
The idea of turning the building into an aquarium came about in the 1960s, and now the top deck offers great views of Vienna and the surrounding hills, and the 4,000 square meters, or 43,000 square feet of floor space inside house aquaria, terraria, and an aviary. Continue reading Animals in the Gun Tower: Haus des Meeres in Vienna