The Catherine Palace is named after Catherine I, the wife of Peter the Great, who ruled Russia for two years after her husband's death. Originally a modest two-storey building commissioned by Peter for Catherine in 1717, the Catherine Palace owes its awesome grandeur to their daughter, Empress Elizabeth, who chose Tsarskoe Selo as her chief summer residence. Starting in 1743, the building was reconstructed by four different architects.

The Catherine Palace, St. Petersburg, Russia-- an entire room was once covered in amber

Palacio de Belvedere, Viena, AUSTRIA.

Belvedere Palace, Vienna, Austria by Sergey Kelin, via Shutterstock

Tudor's Whitehall Palace in summer! I can't wait to go back and see this!

Whitehall Palace, built by King Henry VIII. Whitehall Palace is a former royal palace in the City of Westminster, London.

Palace of Holyroodhouse, the Queen’s official residence in Scotland. The Palace is best known as the home of Mary, Queen of Scots – she was married here, and witnessed the brutal killing of her secretary in her private apartments. Edinburgh, Scotland

Diamond Jubilee: 10 Illustrious British Royal Homes (PHOTOS) Holyrood Palace, Edinburgh