I love the different light in both pictures. These standing stones always intrigue me. Let me post again the stamp about Carnac Stones:
Along with this one about Locmariaquer Megaliths, also in Brittany (France).
On October 1st 2014, Correos issued also one stamp about the Talaiotic Culture, showing one of these impressive Bronze Age megaliths in the island of Menorca. An innovative and surprising aspect of this stamp: it is encrusted with a small amount of limestone dust from the area where the monuments stand. The surface is a bit rough.
PS I am not sure if this post can fit in today's topic of Sunday Stamps - II: Rocks, Gems, Minerals.