HISTORY UK: Built in 1703 for the Duke of Buckingham, George III acquired it in 1762 as a private house. It became an official royal residence in the reign of Queen Victoria, when it was greatly enlarged.
DHR.com: Considered as London's shopping Mecca, this place is home to department stores like John Lewis and Selfridges and flagship stores like Debenhams and Zara. There are 300 more stores to choose from.