A traditional circular Iron Age house made of timber, thatch and wattle and daub.

workplace consisting of a circular building for repairing locomotives

a maintenance facility used by railroads

a place where locomotives, commonly known as trains, are stored and traded out

A semi-circular building surrounding a turntable where locomotives are stored or serviced. Roundhouses were designed for steam locomotives that were generally designed to operate in only one direction and needed to be turned before use. Modern diesel-electric locomotives are now usually maintained in service facilities with one or more parallel tracks.

an Iron-Age circular house

A railway locomotive shed covering tracks which are grouped radially from a turntable. In British practice the actual building was more usually square or rectangular. Roundhouse sheds were not often found on the LNWR, which preferred straight road sheds (exceptions include Camden, Curzon Street and Longsight). Some other lines, including the Midland Railway and Great Western Railway, used roundhouses extensively. The advantage of the arrangement was that each locomotive could enter or leave the shed without having to move others. The weakness was if the central turntable broke down, then the whole shed was disabled.

A curved shed found next to or around a turntable for storage of locomotives.

A building in which locomotives and other railroad equipment are inspected, cleaned, repaired and serviced.

The building used to house engines while they are being serviced or repaired.

The roundhouse is a type of house with a circular plan, built in western Europe before the Roman occupation. The wall was made either of stone or of wooden posts joined by wattle-and-daub panels, and the roof was conical and thatched.