Eight version of Kennywood's 1901 Old Mill ride.
For the 1957 make-over, the ride received a 'trip around the world' theme, including nine new scenes. After the initial amke-over, the ride received various updates during the following years, such as new scenes in 1960 and 1963 and new boats by McKeesport Lumber Company in 1961.
- 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.