NatGeo to auction famous art

The National Geographic Society has chronicled scientific expeditions, explorations, archaeology, wildlife and world cultures for more than 100 years, amassing a collection of 11.5 million photos and original illustrations. A small selection of that massive archive — 240 pieces spanning from the late 1800s to the present — will be sold at Christie's on Dec. 6 at "The National Geographic Collection: The Art of Exploration" auction, and is expected to bring in about $3 million in the first auction ever from the institution's archives.