Hotel Boscolo Nice
The lobby of this Belle Époque extravaganza feels otherworldly (think the white-on-white, Rococo-ed rooms at the end of Kubrick's 2001: A Space Odyssey), and the white-and-cream guest rooms have things like cascading, diamondlike ceiling lights, sculpted rose door handles, and the very latest in push-button luxury. The hotel's Italian restaurant can be hit and miss, but it has a great terrace, and the basement contains one of the most striking spas around (there are even plasma TVs in the saunas, though you don't get to pick the channel).