tokyo, yokohama
Another excellent example of Tokyo's layering. At the top of the picture is a raised highway. Under that is a raised pedestrian walkway. Under that is about twelve well-spaced lanes. And the man in the center of the image is cleaning skylights to a shopping center below, called Yokohama Porta, that spreads beyond the sum of those roads. I've colored the skylights and passageways red that connect below to the veritable city of consumption teeming beneath the ground.