Iraj Castle is an ancient fortress near the city of Varamin in Tehran, the Iranian leader. Iraj Castle is one of the important fortresses of adobe with a height of 50 feet, an area of 200 hectares and was built in 1200 in the 100 meters during the Sassanian era.
Internal dimensions of the north - south-east of the castle of Varamin 1214 m - 1150 m west of the castle with a historic adobe and the world are not comparable.
Three Qanats, underground water canals, were also found, which suggest that the area might have been used for farming.
This monument, the largest mud brick fortress of defense is the world leader in the north to the road Varamin communication and 4 to the gateway in order to enable entry into the building is built.
The four gates of the main gate located on the north-east of the great treasures of centuries still remain stable.
References:
http://en.wikipedia.org
http://www.Iran.farsfoundation.nl
http://edition.presstv.ir