Actually, people back then must have been brilliant compared to today, somehow, they managed to quarry stones that weighed multiple tons, transport the for miles and then stack them on top of each other multiple stories high and did it all without modern heavy equipment.
There are some good websites and videos that review things like ancient and Middle Ages physics or windmills and capstans and pulleys and rope and knot technology that will amaze you. I love digging into things like this too.
“they managed to quarry stones that weighed multiple tons”
Baalbek.