The Palace of Versailles offers visitors a chance to walk in the footsteps of royalty and visit intimate chambers, including the king’s grand apartments. But perhaps the most famous room at Versailles is the Grande Galerie, or the Hall of Mirrors, which was once haunted by courtiers playing politics or awaiting an audience with the monarch. This same room later witnessed one of the defining moments of 20th-century European history when the Treaty of Versailles, ending the First World War, was signed within its walls in June 1919. Versailles’ sprawling, stunning palace is matched by the splendor of the gardens in which it is situated. You can spend days admiring the fountains and flowers without even setting foot inside the palace or Versailles’ other notable buildings.