How Did Photographers Take the 50 Best Photos of National Geographic?…

The 50 best National Geographic pictures are all gorgeous, beautiful and iconic. And as amazing as they are, they're really just a snapshot of a greater story. Wouldn't you love to find out the behind the scenes stories on how each of those pictures happened? National Geographic's new iPad app tells you just that. Some … » 3/07/11 9:20pm 3/07/11 9:20pm