Budapest, the capital city of Hungary,  as being the largest city of Hungary, serves as the country's principal political, cultural, commercial, industrial, and transportation center. Situated in central Hungary, it is considered an important hub in Central Europe.

In 2008, Budapest had 1,702,297 inhabitants with an official agglomeration of 2,451,418 down from a mid-1980s peak of 2.1 million. The city covers an area of 525 square kilometres (202.7 sq mi) within the city limits. Budapest became a single city occupying both banks of the river Danube with the unification on 17 November 1873, of right-bank Buda and Óbuda together with Pest on the left bank. The Danube enters the city from the north; later it encircles two islands, Óbuda Island and Margaret Island. The river that separates the two parts of the city is only 230 m (755 ft) wide at its narrowest point in Budapest.

Gerbeaud Café, and the Százéves, Biarritz, Fortuna, Alabárdos, Arany Szarvas, Kárpátia and the world famous Mátyás Pince Restaurants are the examples of the Hungarian cuisine and café culture. There are Roman remains at the Aquincum Museum, and historic furniture at the Nagytétény Castle Museum. The Castle Hill, the River Danube embankments and the whole of Andrássy út have been officially recognized as UNESCO World Heritage Sites.

There are Museum of Fine Arts, the Palace of Arts, the City Park, and Vajdahunyad Castle not to be missed to visit. One of the jewels of Andrássy út is the Hungarian State Opera House. Memento Park is a theme park with striking statues of the Communist era. There are islands which are Margit-sziget, Csepel-sziget, Hajógyári-sziget, and Luppa-sziget.

The city is home to the largest synagogue in Europe, namely Dohány Street Synagogue and the largest medicinal bath in Europe which is Széchenyi Medicinal Bath and the third largest Parliament building in the world,. The third largest church in Europe which is Esztergom Basilica and the second largest Baroque castle in the world, namely Gödöllő are in the vicinity.