
The London Underline concept from design firm Gensler seeks to transform the city's disused rail tunnels into a network of underground pathways for cyclists and pedestrians beneath the streets of the British capital.

The idea snagged the award for best conceptual project at the London Planning Awards last week.

A number of old tube stations and tunnels currently lie dormant. However, Transport For London suggest there may not be enough to create an extensive cycle network.

The London Underground network is one of the oldest in the world.

Stations were used as bomb shelters during World War II when the city was regularly targeted by German bombers.

In more recent times, disused tunnels have been transformed to host the likes of hydroponic farms.