Fittingly, early London Underground trains were actually split into classes. In all, over 1,100 of these 1938 cars were built — with some still in use in London up until 1988.

The roller coaster takes you up a hill that is 100 feet in the air, then the first drop takes you 103 feet into one of the four underground tunnels. The roller coaster reaches a top speed of 63 MPH.

A new London Underground test train has been vandalised after it arrived in London for its trial runs on the Piccadilly Line. The test train, complete with the modern features set to be introduced ...