The Piccadilly Line is a London Underground Line that runs from Cockfosters in North London down through central London, then it splits into Two branches, the one to Uxbridge and to Heathrow. It opened in 1906 as the Piccadilly, Northern and West Brompton Railway. It has 53 stations and is the fourth largest line in terms of passengers. With 210,000,000 annually.

It is the third oldest deep level tube line, Behind the Northern and Waterloo and City, it ran from Piccadilly Circus to Finsbury Park.

it is the Second longest line. Behind the Central Line. It has the second most amount of stations, after the District Line. The Piccadilly Line has 71 km of track.