The Duomo of Santa Maria ad Nives is a Roman Catholic church, formerly cathedral, located in Atella. The church has undergone a number of reconstructions and contains an eclectic array of styles. The stone façade dates to the 13th century with a gothic-style portal and rose window, but the interiors were completed mainly in the 18th-century. The façade has statues of St Anthony Abbot and San Nicola di Bari. The interior has altarpieces depicting the Annunciation (circa 1500) and a Madonna della Neve from 1800.
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.