Architect Stefano Boeri has always been obsessed with trees. The Italian traces his fascination back to a novel he read as a child in which a young boy climbs up into a world of trees and vows to never to return.
Designed to absorb 25 tonnes of carbon dioxide a year and produce about 60kg of oxygen per day, the vertical forest being planted in Nanjing, eastern China, is a move against nature-deprived urban development
Bosco Verticale brought reforestation and naturalization into the city. The structures include an ecosystem that attract birds and bees, filling the air with the chirping and buzzing of the countryside.