Lambsar

Lambsar - Credit: Wikimedia Commons

Lambsar (, also pronounced Lamsar), Lamasar, Lambasar, Lambesar () or Lomasar () was probably the largest and the most fortified of the Ismaili castles. The fortress is located in the central Alborz mountains, south of the Caspian Sea, about 120 km from present-day Tehran, Iran. Lambsar is to the northeast of Razmian village (the central district of Rudbar e Shahrestan). Read more on Wikipedia

type: building
date from: None

Source: en.wikipedia.org