1,500 year old murals survive in a series of Buddhist temple caves carved out of a mountain in central India. The 30 caves at Ajanta were abandoned hundreds of years ago and rediscovered in 1819. Recently, Benoy K. Behl succeeded in photographing the ancient murals using available light, thus preserving their original appearance. National Geographic features these pictures in their January 2008 issue.
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Metafilter(image credit: Benoy K. Behl)