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.
Wikipedia https://en.wikipedia.org/wiki/Skansen_Lejonet
Official Website http://www.sfv.se/sv/sevardheter/vastra-gotalands/skansen-lejonet/
Address 25 Emerentias backe, Göteborg 41104, Sweden
Coordinates 57°42'51.428" N 11°59'22.11" E