alt Hacker NewsEiffel tower: 10,000 tons
Great pyramid: 5 or 6 million tons
So only around 500 times as much moving material around, feasible I guess. You might need a dedicated rail line built direct to the quarry.
Funny to mention cathedrals considering that they finished one in Spain just recently. There's also Guédelon Castle in France, still being slowly built.
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marshray • yesterday at 9:07 PM
For anyone interested in modern humans' ability to move material around when it is economically advantageous to do so, try a web image search for "largest open pit mines".
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To be fair you got to also move a lot of ore to refine that metal. But there was also a lot of mechanically generated power used to get it.