Ecomuseum with aquarium, Rousse, Natural history museum with aquarium in Ruse, Bulgaria.

The Ecomuseum with Aquarium in Ruse occupies a building from the early 20th century on Alexander Battenberg Square. Its underground floor holds Bulgaria's freshwater aquarium of Danube fish, while the top floor displays old objects including a model of the first railway line in Bulgaria, Ruse–Varna, and the first map of Bulgaria. A 15-metre model of Orlova Chuka cave and the Ivanovo rock monastery is also on show.

The museum was founded in 2014 as an addition to the Regional Museum of History and created a space for environmental education. Since then it has grown into an important facility for teaching natural sciences in the region.

The museum displays fish species that live in the Danube, helping visitors understand the habitats of these animals. Through the exhibits, you see how important this river is for local nature.

The museum stands on Alexander Battenberg Square in Ruse, in a building from the early 20th century. The Danube fish aquarium occupies the underground floor, while the old objects, including the model of the Ruse–Varna railway line, are on the top floor, so plan to move between levels.

The 15-metre model of Orlova Chuka cave and the Ivanovo rock monastery is the largest of its kind in Bulgaria. Among the bone collection, a lower jaw of Mammuthus Romanos stands out, alongside a cave bear jaw. The top floor holds a model of Bulgaria's first railway line, Ruse–Varna, and the country's first map.