The Villafranca del Bierzo Castle was built in 1515 over the remains of a previous fortification. Its first owner was Don Pedro Alvarez de Toledo (second marques of Villafranca) and since 1850 by Don Joaquin Caro y Alvarez.
More of a fortified-palance than a castle, it was ransacked in 1809 by the English and in 1815 and 1819 by the French during the Independence War.
This building is located in a town of great importance on the pilgrims’ route to Santiago. It has the form of a large square with a rounded turrets at the corners, with the rooms of the palace arranged around a central interior courtyard.
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.