First version of Kennywood's Old Mill ride.
- Old Mill (1901-1906)
- Panama Canal (1907-1911)
- Old Mill Rapids Gorge (1912-1914)
- Old Mill (1915-1916)
- Fairyland Floats (1917-1920)
- Tour of the World (1921-1925)
- Old Mill (1926-1956)
- Old Mill (1957-1973)
- Hard Headed Harold's Horrendously Humorous Haunted Hideaway (1974-1992)
- Old Mill (1993-2003)
- Garfield's Nightmare (2004-2019)
- Old Mill (2020-present)
The ride system is still in operation today, making it one of the oldest dark rides in the world.