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. And the café on the 11th floor grants visitors a breathtaking view of Vienna.
In the House of the Tropics and the Croc-Park you can see free-flying birds and free-roaming apes, crocodiles, and other animals categorized by habitat. In the terrarium section live poisonous as well as giant snakes, lizards, leaf-cutter ants, and tarantulas. And the Adventure Aquarium "Brandungsriff" lets children experience the tropical fish right up close through the "diver‟s helmets" built into the floor of the aquarium. In an artificial stalactite cave grotto, you can observe over 100 animals and cave-dwellers which are active by night: poisonous giant millipedes, amplypigids and armored ground crickets, cave fish without eyes and scorpions that glow like ghosts under UV light.
