Thanks Z that's pretty interesting. More proof of what we already know, which is we don't know a lot.
I remember reading something about that site on Steve Quayle's site a long time ago, or maybe hearing him talk about it. I had NO idea it would be that impressive though. Sometimes words can't do what an HD video can. Reminds me a little bit of Petra. I posted awhile back but for whatever reason Spec Ops Teams are rushed in to guard many of these sites of antiquity prior to conflict.
2/10,000's of an inch is something we can just reach nowadays with a computer controlled machine. Problem being you'd have to have a machine large enough to house the rough cut stone and hold its 70 ton weight!!
"Here at Swiss-Tech we deliver precision that surpasses your highest expectations for custom-machined components with tolerances
as low as .0002 (2/10,000) of an inch."
And here's a nice pic of a 70 ton crane:
And then there's the hauling issue. 70 tons from the quarry for 500 miles is no small task either:
http://www.ops.fhwa.dot.gov/freight/publications/brdg_frm_wghts/index.htm