The following outline is provided as an overview of and topical guide to Vienna: Vienna – capital of Austria and one of its nine states. It is the country's largest city, with over 1.8 million residents within an area of 414.65 km2 (160.10 sq mi). Vienna has a rich heritage and is considered one of the most livable cities in the world. It is the cultural center of Austria and a popular tourist destination, attracting over 6.8 million visitors per year. Having become the home of many musical luminaries throughout music's classical period (and later), including Mozart and Beethoven, Vienna is known as the City of Music.