Well, one of the most prominence stones left behind is the “Unfinished’ Obelisk,” taller than any known obelisk ever raised. The unfinished obelisk is located in the northern region of Aswan Egypt (500 miles south of Cairo). It is roughly one third larger than any ancient Egyptian obelisk ever erected. If this obelisk finished, then it’d have been measured 137 feet and weighed 1,200 tons. The creator of Obelisk started to carve it directly from bedrock, but cracks appeared in the granite and project was abandoned. However, the bottom side is still attached to the bedrock gives important clues to how the ancient quarried granite.