Barrow Hill Roundhouse is the last surviving railway roundhouse in the United Kingdom with an operational turntable. Built in 1870, it was threatened with demolition in 1991 when the site was closed by British Rail. It was saved by a group of dedicated volunteers who have transformed it into a premier railway venue.
The Roundhouse is open to the general public every weekend except during the Christmas and New Year holiday period. It is also the venue for several major events every year and attracts over 30,000 visitors annually. As well as the turntable and unique sheer legs (lifting gear), it has a changing display of steam and diesel locomotives and other rolling stock, a collection of artefacts and memorabilia, and an operational signal box and short running line. The Roundhouse was awarded Museum Accreditation by the Museums Libraries and Archives Council in 2010. Barrow Hill Roundhouse is also home to the Deltic Preservation Society.