The United Nations Educational, Scientific and Cultural Organization made the decision on Sunday during its World Heritage Committee’s 37th annual session held in Phnom Penh.  Golestan Palace, actually a complex of palaces in Tehran was built in Tehran in the 16th century when the Safavid Dynasty was ruling Iran and seat and home of the Kahdja Dynasty but was used by the last of the shahs, Mohammad Reza Pahlavi and his father Reza Shah for ceremonial occasions.  “The Golestan Palace is considered of Outstanding Universal Value because it is presented as the most complete and only remaining example of a royal palace which is an architectural masterpiece of the Qajar era,” the International Council on Monuments and Sites (ICOMOS) said in a statement.