18 Marina Gardens Dr, Singapore 018953
With its domed greenhouses of epic proportions dotted across some 100 hectares (250 acres), the sustainable Gardens by the Bay are educational and fun. The Cloud Forest is a misty, 42-meter-high (138-foot-high) “mountain” that re-creates tropical highlands; visitors use ramps to explore around and through them. A biosphere of Mediterranean and desert plants, including huge baobab trees, makes up the Flower Dome. Outdoors, guests walk on suspended walkways between steel-frame “Supertrees” that are covered in solar-powered lights.