If we consider the vast expanse of Sistan as an ocean, Mount Khajeh is its island. The inhabitants of Khajeh Mountain chose the heights of this mountain as the best place to stay in order to be safe from the waters of Hamoon Lake. The story of this ancient castle and Mount Khajeh dates back to more than 1,200 years ago. When Zoroastrians used this place as a fire temple to perform their rituals and ceremonies. Many rulers and kings ruled this region for many years, and with the arrival of the Parthians and Sassanids, various historical monuments have been created in this region. Existence of beautiful and abundant plastering in the heart of clay and mud is one of the symbols of art of that period. There are also a large number of murals with portraits of kings, nobles and religious stories are among the important works discovered in the mountain of Khajeh Sistan. Khajeh Mountain is located about 30 km southwest of Zabol in Sistan and Baluchestan province. This historical complex was registered in the list of national monuments of Iran in 1345 with the number 540.