The perfectly preserved Romanesque church of Celles is thought to be prior to the 12th century. The crypt, located under the choir, probably dates back to the 9th century. The crypt is built in the shape of a Latin cross with three naves and 2 rows of pillars.
In the church tower, you can admire a very ancient roman inscription, which is thought to date from the reign of the emperor Probus (279).
This remarkable monument is definitely worth a visit, even if it were just for the sake of admiring the stalls, the font and the holy water font both from the 12th century. It equally boasts rather interesting tombstones, namely one in black marble, which houses the remains of Rasse de Celles and his wife.
The church of Celles is open to the public all year round. It is remarkably well preserved, and considered as one of the finest examples of Mosan Romanesque architecture. Built with limestone and sandstone rubble, it is thought to be prior to the 12th century, while the crypt, located under the choir, is thought to date from the 9th century. The church has the shape of a Latin cross, with three naves and two rows of pillars.
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.