Visited the Lascaux cave replica again after 15 years and the color loss is shocking
I first saw the replica in 2008, and the ochre reds and blacks in the bison paintings were deep and clear. Returning this month, the pigments have faded to weak, washed-out versions, likely from years of standard museum lighting. Has anyone else documented this kind of decay in other site replicas, and what's being done to slow it down?