Anti-Aircraft Bunker Turned Aquarium

A while back, I mentioned that the park near our Vienna apartment was next to an aquarium that used to be an anti-aircraft bunker/tower during World War II. Ian explained to me that they had tried to blow them up to take them down, but that they were basically indestructible. So, naturally, they turned this one into an aquarium, an attraction for young children. If you look closely, you can even the climbing wall on the outside!