Rudkhan castle or castle Hesami is the name of a fortress belonging to the Seljuk period, which is built over the forest highlands of Fuman city in the beautiful village of Rudkhan, its area is 2.6 hectares, and it has 65 tower and ramparts and a wall with a length of 1500 meters.
Rudkhan castle is located 30 km from Fouman. According to some experts, this castle had been constructed during the Sassanian era, coincided with the Arab invasion of Iran, and later rebuilt during the Seljuq era by the Nizari Ismailis.
The castle is located at an altitude of 665 to 715 meters above sea level, alongside a river with the same name. The Rudkhan Castle River originates in the surrounding heights and flows from south to north.
The castle of RudKhan consists of two parts of the “Arg” and “GhoorKhaneh”. “Arg” is located in the western part of the complex and is made of brick. There is also a spring between the castle and the deepest place of the area.
The eastern part of the castle consists of twelve entrances, a prison, an emergency door, and a bathroom. The western part also has twelve entrances, fountains, ponds, water reservoirs, cold stores, baths, and several residential units enclosed with towers. 40 watchtowers surround the whole castle, whose octagonal rooms are covered with dome arches. There are sloping openings around the walls and towers that are embedded with the purpose of pouring lava on enemies and shooting positions. It should be noted that during the history of the castle, no enemy has ever penetrated the castle and it’s never been conquered.