Budapest is the capital and the most populous city of Hungary, and the tenth-largest city in the European Union by population within city limits. Budapest is both a city and county, and forms the Centre of the Budapest metropolitan area, and is among the top 100 GDP performing cities in the world. Budapest is a leading global city with strengths in commerce, finance, media, art, fashion,research, technology, education, and entertainment. It is a leading R&D and financial Centre and the highest ranked Central and Eastern European city on Innovation Cities Top 100 index, as well ranked as the second fastest-developing urban economy in Europe
Budapest is cited as one of the most beautiful cities in Europe, ranked as "the world's second best city" and "Europe's 7th most idyllic place to live. It has Museum of Fine Arts, Hungarian National Museum, House of Terror, Franz Liszt Academy of Music, Hungarian State Opera House and National Széchényi Library, Danube River and has many notable monuments including Gresham Palace, Széchenyi Chain Bridge, Matthias Church and the Liberty Statue. , the Nyugati Railway Station built by the Eiffel Company of Paris in 1877 and the second-oldest metro line in the world, the Millennium Underground Railway. It has around 80 geothermal springs, the largest thermal water cave system, second largest synagogue, and third largest Parliament building in the world. Budapest attracts 4.4 million international tourists per year, making it the 25th most popular city in the world and the 6th in Europe.