Haus des Meeres

  Rising above the bustling Mariahilf district, Haus des Meeres is a prominent aquarium and terrarium that provides a unique glimpse into aquatic and terrestrial life. Originally constructed as a flak tower during World War II in 1943, this structure now hosts over 10,000 animals, including fascinating species like sharks and tropical fish. The facility also features a diverse array of reptiles and birds, making it a popular destination for families and wildlife enthusiasts. Visitors can explore the exhibits year-round, with special events often taking place during school holidays, especially around December. Don't miss the panoramic views from the observation deck, which offers a scenic perspective of Vienna’s cityscape.