Britain's Kate, the Duchess of Cambridge, reacts as she is presented a badge that says "Baby on Board", normally available to pregnant passengers to encourage others to give them a seat, watched by Britain's Queen Elizabeth II, bottom, at Baker Street underground station in London, for a visit to mark the 150th anniversary of the London Underground, Wednesday, March 20, 2013. The Queen made her first public engagement in more than a week Wednesday after cancellations following her hospitalization for a stomach bug. The British head of state joined her husband Prince Philip and their granddaughter-in-law, Kate, for the event marking the 150th anniversary of London's sprawling subway system, affectionately known as the Tube. (AP Photo/Matt Dunham)
Gallery: British royals at subway station, zoo
Mar. 20, 2013 @ 01:40 PM
British royals visited a subway station and a zoo among events this week.