Built in 1640, the Kasabashi Bridge is one of the oldest surviving Ottoman bridges in Albania. It was built by the main architect of the Ottoman Empire, Reis Mimar Kasëm (Architect Kasëmi). The stone bridge is 25 metres long, three metres wide and has three arches. While the large arch has a diameter of 12 metres, the two other arches are smaller.
The bridge crosses the Osum River and is only a short distance from Osum Canyon (Kanioni i Osumit), and is on the way to the Tunnels of Pirogoshi .