Ismailid's Castles in south of Khorasan (Castle mountain of Qaien)

Castle Mountain, or Artagovana, glorious natural and human heritage remains from ancient age and Achaemenid dynasty in Qohestan the historic district in the south of Khorasan, the spent bachbone and a long era. This castle in the first centuries of islam went, as one of the shelters and centers Zoroastrian propaganda and centuries later, the most important centers of activity of the Ismailid of Southern Khorasan province. Asfar as the compilation works such as ethics of AKHLAGHE – NASERI by Khajeh Nasir Tusi tale of considerable importance to it. This building as one of the centers advisable for attracting tourism, index makes location and natural landscape castle on the hand, and the other hand remained of buildings and architectural works such as one floor or two floor spaces and embedded trench, water storage, and the wall is stable. Three points above the basic castle are: 1- Background of ancient and historical building as a center of political and intellectual developments in effective land of Khorasan and compared with Alamut castle. 2- Position with beautiful natural space by clearing the height on top of a mountain over five hundred meters. 3- Buildings architecture of this castle that kept clear of the boom has various periods.