The Switchback Railway was the forerunner of the roller coaster. Passengers sit in a small car which trundles up a swooping railway track then performs a 180 degree turn at its summit before swooping back down on a parallel track.
1951
1967
2011
1964
1897
1992
1939
1999
1894
1896
1898
1994
1943
1925
1993
1909
2005