Kara Su Bridge
Historic bridge in Ardabil, Iran
From Wikipedia, the free encyclopedia
Kara Su Bridge (Persian: پل قرهسو), also known as Zaqan, is a bridge in Ardabil, north-west Iran. It spans the Baliqly Chay River. The bridge has seven arches and was originally built during the Safavid era.[1] The bridge was last renovated around 1920.