Prague (Czech: Praha) - is the capital of the Czech Republic and its largest urban center. It is located in central Bohemia on the river Vltava and is estimated to be about 1.2 million inhabitants (although according to the statistical data of the workforce, the city has an additional 300,000 people without registration). Prague is one of the most beautiful cities in the world.
Vienna (Wien) is the capital of Austria and one of the nine Austrian states. With 1.6 million inhabitants (2,2 miles of agglomeration, more than ¼ of Austria's population), Vienna is the largest city in Austria, as well as its economic and political center. Is the tenth city of the European Union.
Budapest (Hungarian Budapest) - the capital of Hungary and the country's main political, industrial, commercial and transportation center. There are currently over 1.7 million people, which is the result of a decline in the 80s (2.07 million). In 1873, Budapest became one of the city's towns on the left bank of the Bay of the Bypass, the right bank of Budada (Germany) and Oudau (Old Buda or Altai-Offen). It is located on both banks of Danube. It is the sixth largest in the EU.