Is there another anime series aside Gundam which created real scale giant robots?
You could count Tetsujin 28-go, or Gigantor as it was known in the west.

This one was erected in Wakamatsu Park, Kobe, after the Great Hanshin Earthquake of 1995. The idea was to rejuvenate the area with tourism.
As far as I know, this is full-scale, at 18m (59ft) tall.