Lion Redoubt
Gothenburg Municipality, Sweden · built 1689
Skansen Lejonet ("the Lion Sconce"), formally Westgötha Leijon ("the Westrogothic Lion"), 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.
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).