Vienna, Austria

Vienna is the capital and largest city of Austria, and one of the nine states of Austria. Vienna is Austria's primary city, and its cultural, economic, and political centre. It is the 6th-largest city by population within city limits in the European Union. Until the beginning of the 20th century it was the largest German-speaking city in the world. Today it has the second most number of German speakers after Berlin. Vienna is host to many major international organizations, including the United Nations and OPEC. The city lies in the east of Austria and is close to the borders of the Czech Republic, Slovakia, and Hungary. These regions work together in a European Centrope border region. In 2001, the city centre was designated a UNESCO World Heritage Site.