They build a life-sized Gundam. That lights up at night. And Moves.
Naturally, the internets are filling up with amazing shots of this thing. Particularly over at Pink Tentacle.
Why put up a giant Gundam? Oh, the 30th anniversary of the show or something. Not important. What IS important is that there is a GIANT ROBOT. In TOKYO. Hang on. This always ends badly.
Amnesia Blog 
That is more awesome than words describe. I had seen shots of it, but moving and having lights at night? AWESOME!
Now I need to go to Japan to see it for myself.