SUBWAY MUSEUM (FÖLDALATTI VASÚTI MÚZEUM)

The yellow line of the Budapest subway (1896), still in operation, is the oldest on the European continent (London opened its own in 1863). The original cars are displayed in the Deák underground passageway under Deák tér. With the help of explanations in English, one can learn about the history of this subway, inaugurated by Franz Joseph (and which bore his name at the beginning). An unusual museum that is worth a visit.