Lesendro (fortress) built
1800 CE.
Shown on the map at 42.271°, 19.120°.
Lesendro (Montenegrin: Лесендро) 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.
Text from the Wikipedia article Lesendro, licensed CC BY-SA 4.0.