Javni Akvarijum i Tropikarijum Beograd is a public aquarium and tropical house located at Milenka Vesnića 3 in Belgrade, Serbia, describing itself as a place where happy thoughts are born. The facility features a rich variety of aquatic and terrestrial life, including Amazon piranhas, clownfish, blue tangs, coral reef inhabitants, koi, freshwater species, and biotope aquariums representing ecosystems from around the world. A dedicated reptile room houses snakes, lizards, tortoises, and crabs, while a baby fish section and an Adriatic Sea tank add further variety. Visitors can enjoy piranha feeding demonstrations, interactive encounters with leopard geckos and other animals, and weekend film screenings about aquariums and ecology, making it an engaging destination for all ages.