Castle of Alba de Aliste is located on the margins of the river Aliste. Today it lies in ruins. In the 12th century it belonged to the Knights Templar. Don Álvaro de Luna owned it in the 15th century. It became the capital of the county of Alba y Aliste under Enrique IV.
It was built on the remains of an old Vetton fort in the 12th century and renovated in the 15th century, retaining only some walls and a tower, although it had an irregular plan of 30 meters wide and 70 long, four towers, barbican and crenellated.
References: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.