Rooftop romance: The Fullerton Bay Hotel, Singapore.

Rooftop bars are all the rage, and Lantern, lighting up the top of The Fullerton Bay Hotel on Singapore's super-central Marina Bay waterfront is one of the best. Perched poolside on the 7th-floor with dreamy day-beds, Jacuzzis and loungers, it's a sexy spot to sink a cocktail while soaking up striking sci-fi views of the three-towered casino complex opposite and the city's seductive skyline. With swish public areas designed by rising talent Andre Fu and 98 bedrooms that doff their caps to the Lion City's colonial and pan-Asian roots.