Plans to open The London Post Office Railway - known to many as Mail Rail - as a tourist ride have been approved by Islington Council.
Visitors will be able to ride 0.6 miles (1km) of the tunnels under central London from 2020...
BBC News - Plans approved to open Mail Rail 'secret Tube' as ride
Visitors will be able to ride 0.6 miles (1km) of the tunnels under central London from 2020...
BBC News - Plans approved to open Mail Rail 'secret Tube' as ride