See answer below:
Despite clearly using a building this has nothing to do with real estate. The answer is milk (yep!) The explanation behind the ad is detailed on ‘Ads Of The World’:
“Considering every child lives in a world of fantasy, the idea was to exaggerate the benefit of milk into almost giving the child superhuman powers.”
OK…
RT @agencylogic Can You Guess What This Is Advertising? http://tinyurl.com/3f8bl6d