Ok, ok, so I know this isn`t really an activity or an attraction, but it`s definately an experience you can only have in and around this area. The Tokyo lines can get pretty busy during rush hour, and it`s pretty crazy how many people squish into the train. Now the Japanese don`t go as far as to train surf like the peeps in Bangladesh, but it`s still a site to see. I find that in western countries, people don`t squeeze in as much. They`ll wait for the next train. Anyways, if you`re in the area, try getting on a train. Just make sure you keep your hands to yourself, as sexual harrasement is a big problem in Japan.
Most of the main stations can get pretty busy during the peak times, and especially if it`s raining that day.
People stuffed onto a train in Tokyo, Japan (train stuffing Tokyo)
Weekday morning in January 2006 at a Toyoko Line station between Shibuya and Yokohama (Naka Meguro). Watch the guys with the white gloves stuffing people on the train.