Wien please click to listen! [VIN] is the capital of Austria and one of the nine Austrian provinces. With over 1.8 million inhabitants, Vienna is the most populous city in Austria, the second largest in the German-speaking world and the seventh largest city in the European Union. In Greater Vienna has about 2.6 million people - around a quarter of the total Austrian population. Architecturally, Vienna is still marked primarily by the monuments around the Ringstrasse from the period, but also from the Baroque and Art Nouveau. Through its role as an imperial imperial capital of the Empire of Austria in 1804, Vienna in the 19th century into a cultural and political center of Europe. As the fifth largest city in the world, the city had around the year 1910 more than two million inhabitants. The historical center of Vienna and Schönbrunn Palace are now a UNESCO World Heritage Site. With more than five million tourists each year from abroad Vienna is one of the ten most visited cities in Europe. Already at the Congress of Vienna in 1814-15, the city played an important role in international diplomacy, which it has maintained to the present day. So is Vienna today as international congress venue seat of over 30 international organizations, such as OPEC, the IAEA and the OSCE, and is one of the world's cities. The United Nations Office at Vienna (UNOV) hosts the Vienna International Center (VIC) one of the four headquarters of the United Nations, in the vernacular generally referred to as United Nations headquarters. In addition, Vienna is a city with a very high quality of life. In the international Mercer study 2016 in which the quality of life as political, economic, social and environmental factors compared worldwide in 230 cities based on 39 criteria, Vienna took first place for the eighth time in a row. A study by the United Nations saw Vienna in 2012 as the wealthiest city in the world.