Budapest is the capital and the largest city of Hungary and one of the largest cities in the European Union. Budapest has the largest thermal water system in the world, the first Underground Railroad on the European continent, the third largest Parliament building in the world and the largest synagogue in Europe. With confidence, we can say that Budapest is a dream cum true for any vacationer. It is the perfect gateway to Eastern Europe and deserves to be number one on the list of an Eastern European Holiday. While visiting Budapest, do remember to visit all of the below attractions: Buda Castle Hill, Budapest Opera House, Chain Bridge, Budapest Parliament, Matthias Church, Royal Palace, Fishermen's Bastion, Heroes' Square, Central Market Hall, Gellert Hill, Great Synagogue, Andrassy Avenue, St. Stephen's Basilica, Budapest Academy of Music, City Park, Vaci Street, Budapest Broadway, Danube Promenade, Shoes on the Danube, Margaret Island, Millennium Underground and Roam City of Aquincum.