The House of the Sea displays tropical freshwater and saltwater fish, as well as fish from the Mediterranean and domestic waters, and sharks, all at a lofty height.
Austria’s largest aquarium is located in the House of the Sea: a 300,000 liter tank holds black and white tip sharks, bamboo sharks, and Puppi, a sea turtle. Another highlight is the 150,000-liter tank for the hammerhead sharks on the tenth floor of the former anti-aircraft tower. On the ground floor, visitors can walk through the ten meter-long Atlantic Tunnel: a tunnel leads through a 500,000-liter tank, which is home to the fish of the Atlantic Ocean - ranging from damselfish to eagles rays and a nurse shark. And the café on the 11th floor grants visitors a breathtaking view of Vienna.