Great Pyramid of Cheops

The Great Pyramid of Cheops is one of the largest structures built by man even today, 4,500 years later. It is estimate that 2.3 million blocks averaging 2.5 tons a piece were used in the building the pyramid. Weight of the block ranged from 2 to 15 tons. The pyramid sits on 13.5 acres of land and is a height of 480 feet. The length of its sides are 756 feet. It is estimated to have taken 100,000 men over 25 years to build the pyramid. (IV Dynasty)GizehEgyptExterio