Khaju Bridge is built over Zayanderud River in Isfahan, it connects the Khaju quarter on the north bank with the Zoroastrian quarter. This bridge was built during the reign of Safavid king Shah Abbas II around 1650. Khaju Bridge has 24 arches and is 133 meters long and 12 meters wide. The pieces of stone used in this bridge are over 2 meters long and the distance between every channel and the ceiling base is 21 meters.
This bridge served two functions in the past, a crossing bridge and a weir (dam). The lower section of the bridge is used as resting place in the hot summer months. On the upper level of the bridge, the main central aisle was utilized by horses and carts and the vaulted paths on either side by pedestrians.
The Khaju Bridge is noted as one of the finest construction and instance of Persian architecture. This bridge is an arch bridge and thus does not need cables or additional supports. The bridge was initially designed with artistic painting and tile-work but little remains today. Isfahan is considered by the locals as one of the most beautiful cities in the world because of its architecture and this bridge is one of them.