green roofs WEP Green Roof The World Exchange Plaza has some delightful garden space. It is hard to believe this attractive patch of green is downtown at Queen/Metcalfe, and is on the roof of the parking garage, and available for anyone to enjoy. Share this: Click to email a link to a friend (Opens in new window) Email Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to share on LinkedIn (Opens in new window) LinkedIn