Also known as: Si-o-se-pol, Allah Verdy Khan Bridge, Sioseh Pol (Fasi)

Syoseh Pol (33 bridges or Allahverdi Khan Bridge) is a a stone double-deck arch bridge and approximately 300 m. in length and 14 m. in width, and is one of the masterpieces in bridge construction in Iran and the world. The same was constructed in 1005 AH. under the supervision and expense of Allah Verdy Khan, one of the famous commanders of Shah Abbas Safavid I. The Armenians used to hold special festivities near this bridge in the Safavid period. It was constructed on the Zayandeh Rood river.

 Construction of the bridge began in 1599 and ended 1602. Bridge is long 298 meters and wide 13.75 meters. It has 33 spans from which it gets its name with the longest span of 5.6 meters, crosses Zayandeh River and is located in the southern end of Chahar Bagh Avenue.

Bridge has a large plane at the beginning of the bridge where Zayandeh River flows faster. There it has more arches making with that a suitable place for a tea house that can be accessed from the southern bank. There are two levels of arches. Lower level has 33 arches while upper has two arches above lower lever arch and one arch above pier. Road that goes on the upper level is bounded by two high walls that protect travelers from winds and pedestrians that can walk there, from falling.  Si-o-se Pol Bridge is considered largest Iranian construction on water.