Hallwyl Museum
Stockholm Municipality, Sweden · built 1898
Hallwyl Museum (Hallwylska museet) is a Swedish national museum housed in the historical Hallwyl House in central Stockholm located on 4, Hamngatan facing Berzelii Park. The house once belonged to the Count and Countess von Hallwyl, but was donated to the Swedish state in 1920 to eventually become a museum. In 1938, the museum was officially opened.
Aquarium data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).