Automatic rain and solar-powered sky-gardens create world's greenest urban hotel

The Parkroyal in Singapore breaks new ground the state’s first solar-powered sky-gardens. Amongst its energy conservation features are the use of automatic light, rain and motion sensors, rain harvesting and recycled water. Greenery flourishes throughout the entire complex, and the trees and gardens of the hotel appears to merge with those of the adjoining park as one continuous sweep of urban parkland.