Isfahan is is the main north–south and east–west routes crossing Iran. It was once one of the largest cities in the world. It flourished under the Safavid dynasty, when it became the capital of Persia for the second time in its history. Even today, it retains much of its past glory. It is famous for its Persian–Islamic architecture, with many beautiful boulevards, covered bridges, palaces, mosques, bazaars and minarets. This led to the Persian proverb " Isfahan is half of the world."
The City Center is also the 5th largest shopping mall in the world, mixing the traditional architecture with the modern one.
Naghsh-e Jahan Square is one of the largest city squares in the world. It has been designated by UNESCO as a World Heritage Site. The city also has a wide variety of historic monuments and is known for the paintings, history and architecture.
Two bridges over Zayande Rood river include some of the finest examples of architecture in Isfahan. Their names are Sio-Se-Pol and Khaju.