The official narrative is that over 200 huge buildings were built for the Chicago Worlds Fair only to be torn down a few years later. Everyone believes that story, even though they wouldn't have been able to even complete the foundations of the buildings in time for the fair with 1893 machinery.
(www.youtube.com)
Ancient Civilizations
Exactly. A type of plaster on a frame of some steel but also just timber. More like a movie set than real buildings, plaster surface made to look like large quarried blocks.
Yes this. I swear people like this OP are getting dumber and dumber.