There’s an 18-meter Gundam statue in front of DiverCity Tokyo Plaza, Odaiba, Tokyo.
I know nothing about Gundam, so I shall turn to Wikipedia.
The Gundam Series (ガンダムシリーズ ) is a metaseries of space opera anime created by Sunrise studios that features giant robots (or “mecha”) called “Mobile Suits” (MS); usually the protagonist’s MS will carry the name “Gundam.”
Sounds a bit like the giant robot suits in the very mediocre Pacific Rim movie. The statue was pretty impressive, and worth checking out if you’re visiting Odaiba.