Oxford — La Fédération sur le territoire

Oxford — the dreaming spires — is England's oldest university city and a ninety-minute driver excursion from Mayfair. The Federation arranges private tours of Christ Church (the original Hogwarts dining hall), the Bodleian Library, the Radcliffe Camera, and the Botanic Gardens. Lunch at the Old Parsonage or Le Manoir aux Quat'Saisons (Raymond Blanc's two-Michelin-star inn at Great Milton) extends the day into a memorable half-day.