Klevan castle - the remains of defensive structures with historic viaduct, two stone towers "Puntone" and the buildings of former religious school. Located in the western village of Klevan, in Rivne region.

Information about the original fort dating from the 1475 year. This village in written sources first mentioned during the year 1458 as the property of Prince Michael Czartoryski family. Fortress positioned on a hill near the river Stubla. In 1495, his son Prince Theodore Czartoryski family, Lutsk elder, added onto the castle, surrounded by its strong stone walls and a deep moat, which was filled with water Stubla. Then on the corners were erected two towers Murovanye "puntone" - fifth in the plan. One tower protected the entrance gate and the other - controlled approaches to the castle from the river. Both towers relatively well preserved, especially the east. The thickness of brick walls in some places as high as 3.8 meters. The third tower, which has not survived to this day, was wooden. Ended the construction of the castle in 1561.

https://uk.wikipedia.org/wiki/Клеванський_замок