1. Marvel at the hall of mirrors
Arrive early to beat the tour groups to the State Apartments, the most famous of Versailles’s 2,300 rooms, where you’ll find the renowned Hall of Mirrors. Designed by Jules Hardouin-Mansart, the room’s intricate bronzework and statuary epitomise the palace’s excesses. It was here that the Treaty of Versailles was signed in 1919, ending the First World War, and where state guests including Queen Elizabeth II and the Kennedys have been entertained.