The 13th Annual Smithsonian.com Photo Contest selected the very best images from among more than 46,000 entries from photographers in 168 countries and territories in an array of categories -- Natural World, The American Experience, Travel, People, Altered Images, Mobile and Sustainable Travel.Here are the winners and a selection of the finalists.The photo "Under Pressure" by Adam Taylor from Seattle, Washington was a finalist in the Sustainable Travel category.The image was captured...
