Laxey Wheel, also known as Lady Isabella after the wife of The Hon.
Charles Hope, then Lieutenant Governor of the Isle of Man, was built in 1854 to pump water from the Laxey mine shafts.
Now a tourist attraction, it remains the largest working waterwheel in the world.
Designed by Robert Casement, it is 72 feet 6 inches (22.10 m) in diameter and  6 feet (1.83 m) wide.
It revolves at about 3 rpm.
The Wheel was owned by Edwin Kneale from 1939 to 1965; he saved it from being dismantled and ran it as a tourist attraction, before passing it on to the Manx nation, with the agreement that it should be kept in perpetual running order for the people of the Isle of Man.
In 1965 the Isle of Man Government bought the wheel and the site.
Restoration work began, and in 1989 it was put under the control of Manx National Heritage.

The Great Laxey Mine Railway re-opened with two small steam engines in September 2004 to carry passengers along the restored route.
Laxey Wheel, also known as Lady Isabella after the wife of The Hon. Charles Hope, then Lieutenant Governor of the Isle of Man, was built in 1854 to pump water from the Laxey mine shafts. Now a tourist attraction, it remains the largest working waterwheel in the world. Designed by Robert Casement, it is 72 feet 6 inches (22.10 m) in diameter and  6 feet (1.83 m) wide. It revolves at about 3 rpm. The Wheel was owned by Edwin Kneale from 1939 to 1965; he saved it from being dismantled and ran it as a tourist attraction, before passing it on to the Manx nation, with the agreement that it should be kept in perpetual running order for the people of the Isle of Man. In 1965 the Isle of Man Government bought the wheel and the site. Restoration work began, and in 1989 it was put under the control of Manx National Heritage.
The Great Laxey Mine Railway re-opened with two small steam engines in September 2004 to carry passengers along the restored route.
Laxey