Lesendro
Montenegro · built 1800
Lesendro (Montenegrin) is an island and a fortress in Skadar Lake in Montenegro. It is located near the small town of Vranjina. The fort was built in the 18th century. It is located on a peninsula, which until the construction of the Belgrade–Bar railway was an island.
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).