Reviving London's lost Tube stations

London has the world's oldest underground rail system, but parts of the ever-expanding network haven't been used in years.

Now there are plans to revive so-called 'ghost stations' for commercial use as restaurants, art galleries and even a theatre.

Al Jazeera's Emma Hayward reports from subterranean London.

[aussiedownunderman]

It would bring me endless joy if they accidentally leased it to a person who turns the old tunnels into a cannabis grow op.