My suspicions have been aroused because no one on TMA or TMP has been able to identify either site...so far.
So, looking again, it may be the case that the photos have been composed, or cropped, to appear prehistoric.
I'm not making an outright accusation, just a suggestion, to try to explain our collective inability, so far, to make any identifications.
Certainly, the "cairn within standing stones" photo seems to be too close up to convey the full magnificence of the site it claims to be....and how come we've never heard of it?
http://www.flickr.com/photos/british_isles/2742093461/in/photostream/
Please, someone, identify the sites and prove me wrong.
baz