The Finnish railway museum has been located at Hyvinkää since 1974, when some of its collections were moved to a station and a locomotive depot that includes a roundhouse. The exhibition hall that accommodates most of the rolling stock was built in 1987. The museum encompasses several homes of railway workers.
There are 25 steam locomotives, the earliest built in Manchester and Glasgow, with subsequent examples built in Germany, France and the United States, as well as in Finland. An exhibit of outstanding interest is a royal train built in the 1870s for the Czar of Russia.