There are few places in the world quite as opulent as Monaco — and now the nation-state is even more luxurious with the addition of the Port Palace Hotel. Set on Monte-Carlo's Port Hercule Harbor, the hotel offers another top-of-the-mark option for incentive groups. Highlights include a wine club that was excavated from a harborside cliff and the full-service Clé de Peau Beauté spa. The 50 suites — all with plasma TVs — overlook the harbor of Monaco. A 60-seat, top-floor restaurant is available for groups to meet.