London Underground stations visited by Louie and no other non-human participant listed by line
19 stations
Bakerloo line
Central line
main stretch
Circle line
District line
Upminster branch
Wimbledon branch
Hammersmith & City line
Jubilee line
Metropolitan line
Northern line
Morden branch
Bank branch
Charing Cross branch
Edgware branch
Piccadilly line
Uxbridge branch
Victoria line