The immaculately-looking white neoclassical palace on the Spreeweg, just off the Tiergarten’s northwestern corner is the official residence of the German President. The palace was erected in 1786 as a private residence for Friedrich the Great’s youngest brother Prince Ferdinand of Prussia as three-winged palace ideally situated on the Tiergarten hunting grounds. It was designed by architect Philipp Daniel Boumann. Over the centuries it became a school under Kaiser Wilhelm II (1888 – 1918) – the last German Kaiser – and a Reich guesthouse in 1939. The round arched windows of the side wings were converted from the original side entrances. The present building is the 1959 reconstructed version and only one room the Oval Saal (Oval Office) from Carl Gotthard Langhans is original. The President’s offices are located in the new building, the Bundespräsidialamt, south of the Palace, a contrasting glass and black granite edifice under heavy guard.
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.