Karlsruhe Palace was erected in 1715 by Margrave Charles III William of Baden-Durlach, after a dispute with the citizens of his previous capital, Durlach. The city of Karlsruhe has since grown around it. The first building was constructed by Jakob Friedrich von Batzendorf. The city was planned with the tower of the palace at the centre and 32 streets radiating out from it like spokes on a wheel, or ribs on a folding fan.
Originally partially made of wood, the palace had to be rebuilt in 1746, using stone. Charles Frederick, Margrave of Baden-Durlach at the time, and who eventually became Charles Frederick, Grand Duke of Baden then had the palace altered by Balthasar Neumann and Friedrich von Kesslau until 1770, adding larger windows and doors, pavilions and wings. In 1785, Wilhelm Jeremias Müller shortened the tower, adding a cupola.
During the Revolutions of 1848, Leopold, Grand Duke of Baden was expelled in 1849 for some time. In 1918, the last monarch Frederick II, Grand Duke of Baden had to move out. The former residence of the Rulers of Baden is since used as Badisches Landesmuseum.
Much of the city centre, including the palace, was reduced to rubble by Allied bombing during World War II but was quickly rebuilt after the war.
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.