Skansen Lejonet

Skansen Lejonet, formally Westgötha Leijon, is a redoubt on the hill Gullberg in Gothenburg, Sweden, built in 1687-92 on the site of an earlier medieval castle. It was decommissioned in 1822 and has since served a range of other purposes.

The fortress and its twin, Skansen Kronan, were built to protect the city of Gothenburg against possible Danish attack, and thus had a similar purpose to the sea fort of New Älvsborg, which was built around the same time.

Source: Wikipedia