A railway tunnel that was once the longest in the world is to open to the public as part of a series of heritage days.
Glenfield Railway Tunnel in Leicester was one mile (1.6km) long when it opened in 1832. It was used to transport coal into the city.
When the railway closed in the 1960s, the tunnel was bought by Leicester City Council for £5.
It will open as part of a festival which runs from 9-22 September. Click on link below: