Esfahan was the capital of Iran from 1050 to 1722 A.C. Three different dynasties ruled their kingdoms in Esfahan. Imagine how rich Esfahan’s architecture and culture are. Esfahan is the city of palaces, bridges, mosques, and minarets. Naghsh jahan Square, as one of the UNESCO heritage sites, has four magnificent historical attractions inside itself. The fame of Esfahan led to this proverb in Persian: “Esfahan [is] half of the world.” Nowadays, Esfahan has approximately 2 million people, and it is the third biggest and most impotent city in Iran.