Palacio de Viana was established as the family estate in 1492 by Gómez Suárez de Figuroea. He died childless and was succeeded by his nephew. The original house has experienced numerous alterations up to our days, of which we can highlight the extension in the 17th century, which gave it its current appearance to a great extent.
The palace covers a surface of more than 6,500 square metres, of which almost 4,000 of them correspond to courtyards, gardens and open spaces. Visitors, more than 70,000 every year, are especially attracted by the elegant patios and the superb 18th century garden of this palace which has lately become a museum, thanks to the collaboration of an important institution in the town.
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.