Pictures: London - Latest Photos | LONDON, UNITED KINGDOM - APRIL 14: The Harrods Bears stand in front of the Harrods Routemaster bus as it is readied for exclusive new tours of the city on April 14, 2011 in London, England. The bus tour was launched in partnership with Premium Tours and leaves from the Knightsbridge store every hour, seven days a week, taking passengers on a tour of the city's most famous landmarks and ending back at the Harrods store for visitors to shop or have tea at its famous Restaurant. (Photo by Steve Finn/Harrods via Getty Images)

Pictures: London - Latest Photos | LONDON, UNITED KINGDOM - APRIL 14: The Harrods Bears stand in front of the Harrods Routemaster bus as it is readied for exclusive new tours of the city on April 14, 2011 in London, England. The bus tour was launched in partnership with Premium Tours and leaves from the Knightsbridge store every hour, seven days a week, taking passengers on a tour of the city's most famous landmarks and ending back at the Harrods store for visitors to shop or have tea at its famous Restaurant. (Photo by Steve Finn/Harrods via Getty Images)