Cliveden

The royal treatment for guests comes naturally to Cliveden, the former home of three dukes, an earl, a prince of Wales, and Lord and Lady Astor. The guest book lists every British monarch since George I. Groups find themselves in the best of hands at the heart of the Berkshire countryside—just 20 minutes from Heathrow and 40 minutes from London.

The stately home holds three restaurants, a spa, 38 guest rooms, and a wide choice of meeting venues. In addition to the Macmillan and larger Churchill boardrooms, several reception rooms include the Terrace Dining Room (with space for up to 100 delegates) and the French Dining Room (lined in gilded panels from Madame de Pompadour's Chateau d'Asnieres). Outside, the gardens provide 376 acres for strolling, sports, and team-building programs.