Elst castle ruins in Duffel is one of the oldest buildings in the province of Antwerp. The oldest reference dates from the 12th century. At that time castle was owned by the brothers Hildincshusen. From 1356 until the French Revolution in 1789 the castle was owned by the Tongerlo Abbey and was inhabited by the steward. It was also used as a residence for the nobility. In 1584 the castle burned down and was then rebuilt. In the late 16th century it was a vicarage.
According to 17th- and 18th-century drawings Elst castle was a large building surrounded by moat and gardens. In 1799 the castle was sold to Louis Hermans showed demolish three of the four main buildings of the complex and restored the wing part with the towers. During the First World War the castle was badly damaged.
References:Is there a floor plan for this castle?
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.