Isfahan is one of the historical metropolises in the center of Iran, which was the capital of Iran during the Safavid, Seljuk and Al Boyeh dynasties. Isfahan is the capital of Isfahan province and Isfahan city. A city along the river with three UNESCO World Heritage Sites, ancient Islamic architecture. Isfahan is the third most populous city in Iran after Tehran and Mashhad, the 165th most populous city in the world and the ninth most populous city in West Asia. Isfahan is the 14th most populated metropolis in the Middle East. Isfahan metropolis with 15 urban areas is the second largest metropolis in Iran in terms of urban area after Tehran. The city of Isfahan is a metropolis whose name always comes next to the Zayandeh River.<br />