I just spent a good 35 minutes poking around this site then another 15 playing with on of the color composite images that was on the techniques page...
It was one that was very dark and very red, made after blending the red, green, blue filtered images. I was able to bring it out to a more vibrant image in photoshop, though nothing like what was posted on the site.
As a photographer, I found the shots fascinating and the technique inspiring.
As an anthropologist, I found it a wonder of discovery. The architecture, clothing, tranportation/economic evidence... all great stuff.
Good find Jais... I bookmarked the site to return and share with friends/family!