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LONDON, ENGLAND - MAY 08:  A general view of Windsor Castle as the town prepares for the wedding of Prince Harry and his fiance US actress Meghan Markle, on May 8, 2018 in Windsor, England. St George's Chapel at Windsor Castle will host the wedding of Britain's Prince Harry and US actress Meghan Markle on May 19. The town, which gives its name to the Royal Family, is ready for the event and the expected tens of thousands of royalists.  (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - MAY 08:  A general view of Windsor Castle as the town prepares for the wedding of Prince Harry and his fiance US actress Meghan Markle, on May 8, 2018 in Windsor, England. St George's Chapel at Windsor Castle will host the wedding of Britain's Prince Harry and US actress Meghan Markle on May 19. The town, which gives its name to the Royal Family, is ready for the event and the expected tens of thousands of royalists.  (Photo by Dan Kitwood/Getty Images)

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    Windsor Castle: A closer look

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Windsor Castle: A closer look

The oldest and largest inhabited castle in the world is set to stage the wedding of the year. CNN's Max Foster takes a closer look at Windsor Castle.

Windsor Castle: A closer look

The oldest and largest inhabited castle in the world is set to stage the wedding of the year. CNN's Max Foster takes a closer look at Windsor Castle.