Remains of Archduke Joseph's Palace

Built between 1803–1806 in Neoclassical style according to plans of Mihály Pollack and Johann Aman architects as the home of the Sándor family. In 1867, following the idea of Prime Minister Gyula Andrássy, the Hungarian state first rented it out, and in 1881 bought it permanently as a government residence. Between 1867 and 1945 (with minor interruptions) it served as the residence of the current Hungarian Prime Minister, and was also the site of several government meetings. It was almost completely destroyed in World War II, after that it was used as a museum warehouse for a long time. Its external image was only repaired in 1989–1990, and its complete (external, internal) restoration was carried out between 2000 and 2002. The interiors are original from 1806, and the furniture reflects the conditions between the two world wars. It has served as the official residence and workspace of the President of Hungary since 2003.

The original sculpture was made by György Vastagh and erected in 1935, the current one is a copy made by László Marton, which was placed here in 1998.

The Baroque monastery was built in 1736 by the Carmelite order on the former site of a mosque that was destroyed in 1686 during the siege that liberated Buda from Ottoman occupation. The order received the real estate in 1693 and completed the new monastery and church by 1736, but it was consecrated only in 1763. Two decades later, Emperor Joseph II disbanded the order and converted the property into a theatre by imperial order in 1786, "for the delectation of high-ranking court officials". Some notable performances included Beethoven and the premiere of Bánk Bán. It is the current seat of the Prime Minister of Hungary.

Built between 1895 and 1897 based on the plans of Mór Kallina. The Neo-Renaissance style, four-story, large-domed building suffered severe damage during World War II. After the war, the damaged dome and upper floors were demolished because, according to the professional position at the time, tall, damaged buildings that did not fit the castle complex had to be demolished to two floors. Renovated in 2012–2014.

The ornate Neo-Baroque gate separating the Royal Palace and the Castle Quarter. It was built between 1903 and 1905 according to plans of Alajos Hauszmann. The iron lattice of the gate was made by Gyula Jungfer. It was seriously damaged during the siege of Buda, but it was restored in 1981, together with the broken coat-of-arms of the Kingdom of Hungary on the plinth. On the eastern side of the ornamental gate, overlooking the Danube, a statue of Gyula Donáth depicting the Mythical Turul of the Ancient Hungarians. It is not, as you might think, an eagle, but the mythical turul bird (which is believed to be a kind of falcon). This bird is a part of the story of how the Magyars settled the Hungarian homeland. This bird appeared in a dream to the wife of the Magyar leader and told her that she would be the founding mother of a new nation.

The exhibition commemorates the life and the greatest work of the architect Alajos Hauszmann.