There are such caravanserais in Iran and in many provinces of central Iran, the most important of which is the Marnjab caravanserai, which is located in Isfahan province and on the edge of the beautiful Marnjab desert.
Entering the castle requires a half-hour walk and you have to climb the mountain. Parts of the route are a bit difficult and not suitable for children and the elderly.
Kangelo Castle (Kangolo, Kangeloo, قلعه کنگلو) is located a short distance from a village called Kangelo, which is part of the beautiful Savadkouh County,