Hidden atop Chicago's famous structures are countless green rooftops, turning the city into an eco oasis. Explore these green roofs open to the public.

a group of office workers is busy harvesting the fruits of their labour on the roof of a Hong Kong skyscraper. Invisible to those below, a sprawling garden of radishes, carrots and rhubarb is ...

Two new 591-foot-tall skyscrapers, linked across the top by a daring “sky pool,” are set to rise above Dubai’s Marasi Marina. But the soaring 43-foot infinity pool will not be accessible to ...

A skyscraper set to become Japan’s tallest ... will accommodate commercial facilities and a hall boasting a rooftop garden that measures some 2,500 square meters. The observation deck on the ...