Budapest is the capital of Hungary. As the largest city of Hungary, it serves as the country's principal political, cultural, commercial, industrial, and transportation centre. In 2010, Budapest had 1,721,556 inhabitants, down from its 1980 peak of 2.06 million. The Budapest Commuter Area is home to 3,271,110 people. The city covers an area of 525 square kilometres (202.7 sq mi) within the city limits. Budapest became a single city occupying both banks of the river Danube with a unification on 17 November 1873 of right (west)-bank Buda and Óbuda with left (east)-bank Pest. Budapest is one of Europe's most delightful and enjoyable cities. Due to its scenic setting and its architecture it is nicknamed "Paris of the East".

Kalocsa, one of the oldest towns in Hungary, in Bács-Kiskun county, is situated in a marshy but highly productive district, near the left bank of the Danube River. Historically it had greater political and economic importance than at present. It is the Episcopal see of one of the four Catholic archbishops of Hungary. Amongst its buildings are a fine cathedral, the archiepiscopal palace, an astronomical observatory, a seminary for priests, and colleges for training teachers. The residents of Kalocsa and its wide-spreading communal lands are chiefly employed in the cultivation of paprika, fruit, flax, hemp and cereals, in the capture of waterfowl and in fishing.