Budapest has a Parliament building.
Budapest ( [ ˈbudɒpɛʃt ] ) is the capital and most populous city of Hungary and one of the largest cities in the European Union . The central area of the city along the Danube River is classified as a UNESCO World Heritage Site and has many notable monuments , including the Hungarian Parliament , Buda Castle , Fisherman 's Bastion , Gresham Palace , Széchenyi Chain Bridge , Matthias Church and the Liberty Statue . It has around 80 geothermal springs , the world 's largest thermal water cave system , second largest synagogue , and third largest Parliament building .