Budapest: the tale of three cities named Buda, Pest, and Óbuda. Buda is quite hilly, lies on the western bank of the Danube, and features many of Budapest’s medieval structures and monuments, including Castle Hill and Buda Castle. Pest is predominantly flat, consists of the eastern part of the city across the river, and features attractions such as the Hungarian Parliament Building and Heroes’ Square. Óbuda lies north of Buda and isn’t really home to any of the popular tourist attractions, so it’s often forgotten about. Together these three cities united in 1873 to form Budapest, which is now the capital of Hungary.