Château de Brassac dates back to the 12th century. Initially a baronial seat under the Planels family, it later came under the Counts of Toulouse, English control under Richard the Lionheart, and eventually the French crown.
The castle was originally a keep surrounded by a moat dating from the 12th century. It walls enforced with walls in the next century. During the Hundred Years' War Brassac was captured multiple times by English forces.
During the French Revolution it was burned but later restored by the Galard family, its original owners. In 1997, it was returned to a Galard descendant and is now open for visits.
Château de Brassac has four circular towers, walls 2–3 meters thick, and defensive features like arrow slits. It retains a 14th-century main building atop the original keep's site, 15th-century additions, and a polygonal staircase tower. Access is via stone bridge replacing the original drawbridge.
The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.