Semmelweis Museum of Medical History

The Tabán ruins (Hungarian: tabáni romok) are a group of medieval ruins in Budapest, Hungary. They are located in District I, in the Tabán neighbourhood, between Szarvas tér and Krisztina körút. The scattered ruins officially belong to one listed monument (ID 67). The remains of the mainly medieval structures were discovered in 1936 by archaeologists after the demolition of a large part of the densely built Tabán quarter but significant parts of them disappeared in the 1960s when the whole area was restructured. A 15th-century building, named Building I, and a retaining wall by the Ördög-árok stream are still visible above ground.

The St. Catherine of Alexandria Church (Hungarian: Alexandriai Szent Katalin-templom, German: Pfarrkirche zur heiligen Katharina) is a Roman Catholic church in the Tabán quarter of Budapest, Hungary. It is the parish church of the Tabán Parish which also comprises parts of Gellért Hill and Naphegy. The church is a listed monument that was built in Central European Baroque style between 1728 and 1777. It was reconstructed several times in the 19th–20th centuries.

The Church of Saint Demetrius or the Church of the Holy Trinity (Hungarian: Szent Demeter-templom, Szentháromság-templom, Serbian: Crkva Svetog Dimitrija, Crkva Svete Trojice) was a Serbian Orthodox church in Budapest, Hungary, located in the Tabán area. It was built between 1742 and 1751 in Central European Baroque style by the Serbian community of Buda, and served as the co-cathedral of the Eparchy of Buda. The building was seriously damaged in the siege of Budapest in 1945, and the ruins were demolished in 1949.

The Rác Thermal Bath, located in Budapest, Hungary, is an 8000-square metre bath and is renowned for its Turkish bath dating back to the 16th century, and its imperial pools and shower corridor built in the age of the Austro-Hungarian Monarchy. The bath is listed as a UNESCO World Heritage Site and is now part of the newly built complex of the Rac Hotel & Thermal Spa. Its name derives from the ancient Hungarian name of Serbs, one of the former cohabiting populations in Tabán.

The medieval Palace Chapel (Hungarian: Várkápolna; formerly Alamizsnás Szent János-kápolna) in Buda Castle was built in the 15th century by King Sigismund as the lower chapel of the former Castle Church. The Gothic chapel, which survived the destruction of the 1686 siege, was buried under a Baroque terrace for centuries. After its reconstruction in 1963 became part of the exhibition of the Budapest History Museum.

The bridges of Budapest, Hungary, crossing the River Danube from north to south are as follows:

The National Széchényi Library (Hungarian: Országos Széchényi Könyvtár) (OSZK) is a library in Budapest, Hungary, located in Buda Castle. It is one of two Hungarian national libraries, the other being University of Debrecen Library.

Buda Castle (Hungarian: Budavári Palota, German: Burgpalast) is the historical castle and palace complex of the Hungarian Kings in Budapest. It was first completed in 1265, although the massive Baroque palace today occupying most of the site was built between 1749 and 1769. The complex in the past was referred to as either the Royal Palace (Hungarian: Királyi-palota) or the Royal Castle (Hungarian: Királyi Vár, German: Königliche Burg). The castle now houses the Hungarian National Gallery and the Budapest Historical Museum. Buda Castle sits on the southern tip of Castle Hill, surrounded by the touristic area known as Várnegyed (Castle Quarter), which is famous for its Medieval, Baroque, and Neoclassical houses, churches, public buildings, and monuments. The hill is linked to Clark Ádám Square and the Széchenyi Chain Bridge by the Castle Hill Funicular. The castle is a part of the Budapest World Heritage Site, so declared in 1987. The original Royal Palace was ruined during World War II; it was rebuilt in a simplified Stalinist Baroque style during the Kádár era.

The Hungarian National Gallery (also known as Magyar Nemzeti Galéria), was established in 1957 as the national art museum. It is located in Buda Castle in Budapest, Hungary. Its collections cover Hungarian art in all genres, including the works of many nineteenth- and twentieth-century Hungarian artists who worked in Paris and other locations in the West. The primary museum for international art in Budapest is the Museum of Fine Arts.

The Palatinal Crypt (Hungarian: Nádori kripta; German: Palatinsgruft) in Buda Castle, Budapest is the burial place of the Hungarian branch of the Habsburg dynasty, founded by Archduke Joseph, Palatine of Hungary. It is the only interior part of Buda Castle which survived the destruction of World War II and was not demolished during the subsequent decades of rebuilding.

The Kingdom of Hungary was a monarchy in Central Europe that existed for nearly a millennium, from the Middle Ages into the 20th century. The Principality of Hungary emerged as a Christian kingdom upon the coronation of the first king Stephen I at Esztergom around the year 1000; his family (the Árpád dynasty) led the monarchy for 300 years. By the 12th century, the kingdom became a European middle power within the Western world.Due to the Ottoman occupation of the central and southern territories of Hungary in the 16th century, the country was partitioned into three parts: the Habsburg Royal Hungary, Ottoman Hungary, and the semi-independent Principality of Transylvania. The House of Habsburg held the Hungarian throne after the Battle of Mohács in 1526 continuously until 1918 and also played a key role in the liberation wars against the Ottoman Empire. From 1867, territories connected to the Hungarian crown were incorporated into Austria-Hungary under the name of Lands of the Crown of Saint Stephen. The monarchy ended with the deposition of the last king Charles IV in 1918, after which Hungary became a republic. The kingdom was nominally restored during the "Regency" of 1920–46, ending under the Soviet occupation in 1946.The Kingdom of Hungary was a multiethnic state from its inception until the Treaty of Trianon and it covered what is today Hungary, Slovakia, Transylvania and other parts of Romania, Carpathian Ruthenia (now part of Ukraine), Vojvodina (now part of Serbia), the territory of Burgenland (now part of Austria), Međimurje (now part of Croatia), Prekmurje (now part of Slovenia) and a few villages which are now part of Poland. From 1102 it also included the Kingdom of Croatia, being in personal union with it, united under the King of Hungary. According to demographers, about 80 percent of the population was made up of Hungarians before the Battle of Mohács; however, in the mid-19th century out of a population of 14 million less than 6 million were Hungarian due to the resettlement policies and continuous immigration from neighboring countries. Major territorial changes made Hungary ethnically homogeneous after World War I. More than nine-tenths of the population of modern Hungary is ethnically Hungarian and speaks Hungarian as their mother tongue. Today, the feast day of the first king Stephen I (20 August) is a national holiday in Hungary, commemorating the foundation of the state (Foundation Day).

Tabán usually refers to an area within the 1st district of Budapest, the capital of Hungary. It lies on the Buda (i.e. Western) side of the Danube, to the south of György Dózsa Square, on the northern side of Elisabeth Bridge and to the east of Naphegy. Several other Hungarian cities and towns also have districts called Tabán.