From pharaohs to dot-commers, nothing feeds the soul quite
like an oversize project.
Pyramid at Giza // This was grand even for the gods who ruled ancient Egypt. Around 2590 B.C., Pharaoh Khufu conceived the largest-ever pyramid. Archaeologists estimate that 20,000 to 30,000 workers spent 30 years quarrying more than 2 million limestone and granite blocks averaging over 2.5 tons each. Workers probably moved the stones along ramps that stretched from quarry to building site, muscling them into place with ropes, counterweights and levers. At 450 feet tall, the pyramid covers seven city blocks.