Founded by William the Conqueror in the 11th century, Windsor Castle is the oldest and largest occupied castle in the world.
The home of Hawaii’s last reigning monarchs was built in 1882 by King Kalakaua and was also where his sister and successor, Queen Liliuokalani, lived.
The sprawling Palace of Versailles started life as a hunting pavilion for King Louis XIII in the early 17th century
This sprawling site has been the official residence of the Kings of Siam (and later Thailand) since 1782.
Mon Repos Palace was originally a summer residence for the British governors of Corfu before being gifted to King George I of Greece in 1864.
Built in the 17th century, Drottningholm Palace is the permanent residence of the Swedish royal family.
Hawa Mahal, otherwise known as the Palace of the Winds (or Breeze), forms part of the Royal City Palace of Jaipur.
Topkapi Palace was constructed between 1460 and 1478 and served as the administrative.