michelangelo, pisano, massacio, etcetera

ART HISTORY! is magnificent. I really, really wonder how these people back in the day (you know what I mean) managed to build all these stone buildings. How did they get the big blocks of stone up that high? how, how, how? and how do they not fall down and crush everyone? Not that I don't have faith in the ol' Romans and Florentines back in the day but I want to know how they did it! Did they grab a huge piece of marble and carve a building out of it? Unanswered questions. I would like to be Bill & Ted and go back to those days, please. Thanks!