Blatnica castle was built in the 13th century to protect a major trade route running from Nitra to the north. Soon afterwards it became a royal castle but the kings lost their interest in the castle's development after a new route, through Mošovce and Martin was built. The new owners of Blatnica Castle, the Révay family (from 1540), were more generous and the castle was significantly extended in the second half of the 16th century. The last reconstruction dated from 1744. Since 1790 the castle has been abandoned and has turned into ruins.
The castle is built on typo low ridge of Plešovica which separates the Turiec Basin from the Greater Fatra Range. It is freely accessible from the village of Blatnica by a marked footpath. The castle remnants are hidden in a forest with limited views at the Gader Valley, which stretches underneath, and the opposite Tlstá Mountain.
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.