I cannot express the sense of wonder so many people feel when touching these stones.
The edges are rounded away from the perfect seams. There is this irresistable desire to put your fingers into the spaces. How did they fit those stones together?
Current theories include ramps (like the Egyptians did for pyramids)
or maybe block and tackle (though some insist they did not use the wheel)
Some say "what about those tripods farmers use to lift haybales?"
Most feel they were placed then shaped, and that natural outcroppings were used (this is really visible in some places)
But still I cannot imagine lifting these 20 ton stones.