To find out how ancient Egyptians quarried huge pieces of granite for their obelisks, NOVA traveled to an ancient quarry in Aswan, located 500 miles south of Cairo. This is where the ancient Egyptians found many of the huge granite stones they used for their monuments and statues.
One of the most famous stones left behind is the Unfinished Obelisk, more than twice the size of any known obelisk ever raised. Quarrymen apparently abandoned the obelisk when fractures appeared in its sides. However, the stone, still attached to bedrock, gives important clues to how the ancients quarried granite.