Vienne is the capital, the largest city, and one of the nine states of Austria. With about two million inhabitants, is Austria's most populous city and its cultural, economic, and political centre. It is renowned for its fascinating palaces, the world's best museums, the U-Bahn, and spectacular baroque architecture. It has one of Europe's largest Ferris wheels, it's considered the birthplace of classical music, and is home to many wine taverns that are known for their cosy atmosphere.