Budapest is the capital and the largest city of Hungary, the largest in East Europe. Budapest became a global city after the 1873 unification. It also became the second capital of Austria-Hungary, that dissolved in 1918. The capital dominates the country both by the size of its population—which dwarfs those of Hungary's other cities Budapest was the focal point of Revolution of 1956.
Cited 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. The city attracts about 2.7 million tourists a year, making it the 37th most popular city in the world. It is also ranked as Europe's 7th most idyllic place to live and as the 9th most beautiful city in the World.