The Uzunköprü Bridge meaning "Long Bridge" (Turkish: Uzun köprü) gave its name to the town. The bridge was built between 1426 and 1443 by head architect Muslihiddin on the orders of OttomanSultanMurad II. The ancient stone-built bridge, which has 174 arches, is 1,329 m (4,360 ft) long and up to 6.80 m (22.3 ft) wide. Some of the arches are pointed and some are round. Uzunköprü is the longest stone bridge in Turkey.
The bridge was made to cross the Ergene River, which was a natural barrier for advances into the Balkans for the Ottoman Empire; its old name was Ergene Bridge (Ottoman Turkish: Cisr-i Ergene). It is so long in order to cross a low-lying marshy area. The bridge was restored in 1963.
The Edirne – Izmir state road still passes over Uzunköprü.