Arslanagića bridge is a bridge that bridges the river Trebišnjica in Trebinje. With the Visegrad and Mostar bridges, it is one of the most valuable architectural monuments created in the period from the 15th to the 19th century in Bosnia and Herzegovina. The bridge is a national monument of Bosnia and Herzegovina. The original position of the bridge was on the road that connected Dubrovnik and Herceg Novi with the Constantinople Road, the shortest land connection between Constantinople and Vienna and Venice. It was probably built in 1573/1574. as an endowment of Mehmed-pasha Sokolović. It was most probably named after Arslan-aga, who came to Trebinje from Herceg Novi at the end of the 17th century and received permission from the sultan to collect tolls. Arslan aga built a watchtower on it with a massive door on the ground floor and a guard room on the first floor, but it was demolished during the repair of the bridge in 1890.
