The Zsámbék Castle was built on the spot of a 14th-15th century castle by the Zichy family in the 1690's as a castle, and it was turned into a palace in the 18th century. The early Baroque palace has a plain exterior look with two corner towers.
From 1904, the Sisters Hospitallers of the Sacred Cross used and renovated the building. Probably during these renovations were the medieval great hall and the outbuildings removed. Later the palace was used by a kindergarten and different schools. Since 1929, the palace houses the Vilmos Apor Catholic School.
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.