Charles & Camilla on the tube
The Prince of Wales and the Duchess of Cornwall hopped on the tube today to mark the underground's 150th birthday.
Steam tribute for tube anniversary
A 19th Century steam train took passengers on the London Underground today to mark the 150th anniversary of the first Tube journey in the capital.
Specially invited passengers moved off from Kensington Olympia Tube station in west London aboard a train pulled by Met Locomotive 1, which was built in 1898.
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Steam train returns for 150th anniversary
A steam train which carried passengers in the 19th Century has returned to mark 150 years since the first tube journey.
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Pictures: Stops along the Tube's 150 year journey
A look back at some of the stops on London Underground's 150 year journey.
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150 years of the Tube quiz
All day we've been adding fascinating facts about the Tube, which turns 150 years old this week. Now find out how much you know.