The Piccadilly line is one of the best-used Tube lines, stretching from the suburbs of north London to Heathrow airport. Born from the Great Northern, Piccadilly & Brompton Railway, the route’s name ...

The Piccadilly line is one of the best-used Tube lines ... A year later, a short branch opened between Holborn and the now-disused Aldwych station – but it took another two decades before ...