RisuPia looks fun...
A few more from me
Also in Odaiba...Panasonic competitor sony with
Sony ExploraScience
In Kanagawa: Mitsubishi museum
Mitsubishi Minatomirai Industrial Museum Kinda near Cup Noodle museum and other random stuff in Yokohama
In Saitama is a big train museum
THE RAILWAY MUSEUM
There are other "big" temples nearby in Kawasaki
Kawasaki Daishi Heikenji Temple and Tokyo (Nishiarai)
http://www.visiting-japan.com/en/art...rai-daishi.htm