Roodkhan ( Rudkhan ) Fortress, ÞáÚå ÑæÏÎÇä, located in Fooman forests north of Iran, is built on two tips of a mountain, at elevations of 715 and 670 meters. A natural spring flows from one tip down the foothills. There are 65 towers, 42 of these still stand intact, and 1500 meters of fortifying wall encircling an area of 2.6 hectares. Its architects had benefited from natural mountainous features in the construction of the fort.
The castle had two sections: one administrative and the other military, which housed a garrison.
Experts believe existing castle dates back to Seljuk era (1037-1187 AD), however there are evidences of Sassanid architecture (226-651 AD) in the castle.
After crossing mountainous winding pavements through dense and very beautiful rainforests, the first thing that the traveler discovers at elevation of 670+ meters is the castle's big entrance gate.
Among the interesting features of Roodkhan fortress are the various vaults, brick layers and geometric works of masonry which demonstrate the skills of the architects some 1000 years ago.
An step paved passage, passing through spectacular intact forest, taking about 2 houres to climb, is the only accessing way to the castle.