But Gyermekvasut is not a toy train commonly found in amusement parks.
The Children here are not the passengers.
They are the railway workers.
Only the driving and maintenance stuff are done by adults.
The early Young Pioneers were originally Scouts who took the Bolsheviks' side after the October Revolution of 1917.
They were established all across the Soviet Union and Eastern Europe where communism had its presence.
The first opened in Gorky Park, Moscow, in 1932.
The one in Budapest, the Gyermekvasut, opened in 1948.
Many Pioneer Railways are still in use today functioning as heritage railways as well as tourist attractions.
The Gyermekvasut in Budapest is 11.2 km long and goes through seven stops, all popular recreation spots.
They are even permitted to miss school while working on the railway.
Working on the Gyermekvasut is a privilege, and young Hungarians look forward to it.
