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PRAGUE, CZECH REPUBLIC - MAY 09: The Czech Crown Jewels are displayed before the opening of The Bohemian Crown Jewels Exhibition 2013 on May 9, 2013 in Prague, Czech Republic. The Czech jewels and Crown of Saint Wenceslas are considered some of the oldest in Europe and are displayed to the public once every five years. Vladislav's Hall will exhibit the jewels at the Prague Castle from May 10 to 19. (Photo by Matej Divizna/Getty Images)