More than 2,300,000 limestone and granite blocks were pushed, pulled, and dragged into place on the Great Pyramid. The average weight of a block is about 2.3 metric tons (2.5 tons). How much is that?

We may receive a commission on purchases made from links. Animals that evolved alongside humans are called commensal, a word that comes from the Latin "com mensa," which literally means "with table." ...