Budapest is the capital of Hungary. As the largest city of Hungary, it serves as the country's principal political, cultural, commercial, industrial, and transportation centre.
Regarded as one of the most beautiful cities in Europe, its extensive World Heritage Site includes the banks of the Danube, the Buda Castle Quarter, Andrássy Avenue, Heroes' Square and the Millennium Underground Railway, the second oldest in the world. Other highlights include a total of 80 geothermal springs, the world's largest thermal water cave system, second largest synagogue, and third largest Parliament building.
Considered an important hub in Central Europe, the city ranked 3rd (out of 65 cities) on Mastercard's Emerging Markets Index (2008), and ranked as the most livable Central/Eastern European city on EIU's quality of life index (both 2009 & 2010). It is also ranked as "Europe's 7th most idyllic place to live" by Forbes. It attracts over 20 million visitors a year.