The Captain's Tower is Bihać's most prominent historic landmark, a medieval fortification on the bank of the Una that now houses a small historical museum. The squat stone tower, built in the fifteenth century, stands close to the river in the old town and gives the clearest visual link to the town's medieval past.
The museum inside covers the town's turbulent history from the medieval period through the Ottoman era and into the twentieth century, with particular attention to the Second World War period and the 1992–1995 siege. The exhibits are modest but well-intentioned, and the tower itself — you can climb to the top — offers good views over the river and old town rooftops. Entry is inexpensive.