The Butterley Gangroad, which was engineered by Benjamin Outram, was modernised in the 1840s and turned into a narrow gauge railway.

BBC: Derby

One way to get to the famous stones was the narrow-gauge railway line that runs from Bushmills.

BBC: Giant's Causeway's long history of attracting tourists

The facilities were serviced by a narrow-gauge railway.

BBC: Spurn Point 'not disappearing'

In London, the world's first narrow gauge steam engine, Princess, was unveiled after being restored by craftsmen on the Ffestiniog Railway, where she was used 150 years ago.

BBC: Wales