Setai Fifth Avenue

The rush of midtown Manhattan becomes a hazy, glamorous blur from inside this cocoon of a hotel, a stellar example of streamlined maximalism (rosewood and marble flown in from Milan; walk-in closets big enough for a family of four). Part of a 60-story tower, the hotel features uniquely faceted windows angled downward for almost dizzying views of New York glittering at your feet. The Auriga spa is perfect for couples; relax in between treatments at the Aqua Lounge, which has an otherworldly hammam and a "chill room" with a trough of herb-infused ice.