Early Edison and Westinghouse demos? Imagine if someone made a pyramid charged with a Tesla coil. These fucks would see statically charged hair and a metal pyramid and that's that.

Some buildings were created quickly with the intention of being temporary. I believe they may have used new techniques for the time as well. Because they were built so quickly, and were inspired by ancient architecture, some people have decided that they were rediscovered and/or moved or something like that.