The Chehel Sotune Palace and its garden cover an area of approximately 67,000 sq. m. This palace was constructed during the reign of Shah Abbas I and a building was established in the middle of this garden. Shah Abbas II was also responsible for additions to this palace. The reflection of the twenty pillars of the hall in the pool opposite the palace brings about a conception of forty pillars. But in fact the number of “Forty” represents the quantity and multitude in Iran and the reason for which the mentioned building is called Chehel Sotun is the great number of the pillars in this palace.