All the London railway stations :
Piccadilly Line:
Cockfosters to Uxbridge or Heathrow splitting at Acton Town :
Cockfosters
Oakwood
Southgate
Arnos Grove
Bounds Green
Wood Green
Turnpike Lane
Manor House
Finsbury Park
Arsenal
Holloway Road
Caledonian Road
Kings Cross St Pancras
Russell Square
Holborn
Covent Garden
Leicester Square
Piccadilly Circus
Green Park
Hyde Park Corner
Knightsbridge
South Kensington
Gloucester Road
Earls Court
Barons Court
Acton Town
## Then either ##