Housed inside a former chapel that forms part of a 19th-century Dominican monastery which itself lies inside the territory of the Peninsula Castle, this small exhibition on three floors features a wealth of historical paintings, chalices, statues and other Catholic items from all over Europe. Look for the wooden tower behind the blue Trakai Historical National Park Information Bureau building. The museum is hidden away immediately behind this.
Open 09:00 - 17:00. Closed Mon, Tue.