The pyramids, stonehenge and other ancient structures seem to defy the capabilities of the people of their time. There is one destroyed wall that I saw a tv show about where all of the lines were cut perfectly and all of the pieces fit perfectly. The precision mystifies today’s experts who claim it would have been impossible to cut the stones without some kind of a saw, but electricity wasn’t around then and they did not possess the necessary tools. There are structures that could only have been engineered with arial help, such as lines and structures that cover large areas, and can’t be replicated today without modern technology and arial assistance.