Similarly interesting/confusing is the Traffic Light Tree that was in Canary Wharf, London. It's recently been removed to make way for some roadworks. http://e

Similarly interesting/confusing is the Traffic Light Tree that was in Canary Wharf, London. It's recently been removed to make way for some roadworks. http://en.wikipedia.org/wiki/Traffic_Light_tree http://en.wikipedia.org/wiki/Traffic_Light_tree Note that it's art rather than something functional.