Shahr – e- Chay Bridge, the longest bridge in history of east Azerbaijan
Mianeh County as the biggest county of east Azerbaijan province with 300 recorded relics has dedicated the highest number of monuments among the counties of east Azerbaijan to itself after capital of province.
Shahre- e- Chay is the name of river which originates from heights of Ghasim Daghi. Near Mianeh, rivers Ghoro chay, Qarlangho, and Iydoghmosh fall into this river and then join QazalOzan river near Achachi village. Shahr – e- Chay Bridge with 269 meter length has been recorded as one of the national works of Iran and as the longest bridge of east Azerbaijan with registry number 872 in 2nd of Mordad, 1348 (1969). Style of architecture and used materials is exactly the same thing that is evident in thirty three bridge in Esfahan, with just one difference that this bridge has a simpler shape and on Gharanghoo, it evokes the bright history of architecture in Mianeh County.