Tokyo's Shibuya Crossing.
Possibly the busiest crosswalk in the world. The lights change, traffic stops, and waves of humanity surge into the intersection. The chaos is overseen by massive video screens and music, overloading the senses. Illuminated trucks drive by with billboards promoting movies, music and computer games. It can be overwhelming or exhilarating.

This picture was taken from the Starbucks on Shibuya crossing, which is allegedly the busiest Starbucks. They sell only Tall drinks so that customers won't linger as long in their seats.