The Church of Saint Mary of Pulcherada, most commonly known as Pulcherada Abbey, began to be built between the 6th and 8th century AD on what used to be a Roman encampment. The first section to be built was the apse, and the main building was completed between 1029 and 1031. The bell tower was built within the next 200 years, and was built to be disproportionally taller than the rest of the building, which suggests it might have had defense purposes. The abbey became a center around which a village would start to form and eventually grow to become what is now the comune of San Mauro Torinese.
Before the 17th century, the abbey took up the terrain of what are currently the city hall and the church. The abbey contained gardens, fields for cultivation, a mill, a bakery, and a variety of artisanal workshops. In 1665, because of decay, abbot Petrino Aghemio chose to demolish a large portion of the complex, greatly reducing the size of the abbey. In 1803, the few monks present moved to the nearby abbey of San Quintino di Spigno, and thus Pulcherada Abbey was officially closed down the same year by order of Pope Pius VII. Since then, the former abbey has been used exclusively as a church.
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.