Ho Chi Minh City's splashiest newcomer is the Reverie Saigon, in the 39-floor Times Square building. The hotel’s style may not be for everyone: Rolls-Royce Phantom Dragons and Maybachs are the house cars, there’s a velvet-and-gold-leaf 10-seater couch in the lobby, and you’ll see marble and Murano glass everywhere. Yet somehow it works, particularly in the 286 spacious guest rooms, which balance the extravagance with cushy, all-white beds, free mini-bars, and floor-to-ceiling windows overlooking the river. The service is warm (every staff member greets you by name) and smart (log in just once for free Wi-Fi everywhere, even the elevators). The standout two-story spa is more serene and streamlined, but with salt-brick saunas and an underwater-speaker-equipped pool, it feels just as regal. Doubles from $350.