LONDON, UNITED KINGDOM - JANUARY 10: A view of Windsor Castle which is still one of the main official residences of royal family among Buckingham Palace and Holyrood Palace is seen in London, United Kingdom on January 10, 2017. Windsor castle is one of the oldest castles in the world and Queen Elizabeth II still stays here periodically. London hosts several historic churches, castles, towers and palaces. Historical buildings such as Hampton Court Palace, Windsor Castle and Tower of London present their periods in various ways beside the architectural characteristics which attract tourists. (Photo by Erhan Elaldi/Anadolu Agency/Getty Images)
