Steve McCurry's "Afghan Girl" is expected to fetch $30,000-$50,000 at Christie's in December at "The National Geographic Collection: The Art of Exploration" auction. (Steve McCurry/National ... more 

Steve McCurry's "Afghan Girl" is expected to fetch $30,000-$50,000 at Christie's in December at "The National Geographic Collection: The Art of Exploration" auction. (Steve McCurry/National Geographic/Christie's Images) less