Exterior: Kensington Palace
Kensington Palace began as a quaint country mansion that William III and Queen Mary bought for £20,000 in 1689. Since then, the palace has housed a number of royal residents – including Diana, Princess of Wales – and will soon be home to William and Kate, the Duke and Duchess of Cambridge. In 2012, the royal residence reopened to the public after a two-year transformation by independent charity Historic Royal Palaces. The cast iron and glass portico entrance is one of the palace’s new additions.