Tehran. Iran's Ministry of Tourism announced on Saturday that at least 56 museums and historical sites across the country have been damaged due to the Middle East conflict entering its 15th day.In Tehran, local media reported that the UNESCO-listed Golestan Palace sustained damage during the initial days of the US-Israeli attacks.The palace complex is one of the oldest sites in the Iranian capital and served as the residence of the Qajar dynasty in ancient times. It has been reported that the most damaged monuments were recorded in Tehran.It was also reported that the