Catherine, Duchess of Cambridge visits Baker Street Underground Station to mark the 150th anniversary of the London Underground on March 20, 2013 in London, England.
{"Image ImageDescription": "LONDON, UNITED KINGDOM - MARCH 20: Catherine, Duchess of Cambridge visits Baker Street Underground Station to mark the 150th anniversary of the London Underground on March 20, 2013 in London, England. (Photo by Karwai Tang/Getty Images)", "Image Copyright": "2013 Karwai Tang"}