The belfry of Abbeville is one of the oldest in France, built in 1209. On 20 May 1940, during a bombing, its roof was damaged and it was only in 1986 that it was rebuilt. The belfry is one of the fifty-six belfries of Belgium and France registered in 2005 by the World Heritage Committee of UNESCO in recognition of its testimony to the rise of municipal power in the region and its architecture. It has housed the museum of the city since 1954.
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.