The 24th annual National Geographic Traveler Photo Contest has just wrapped up, and judges will soon be selecting the winners -- but voting for the Viewer's Choice award is open until Friday, July 20, at 9 a.m. National Geographic was kind enough to allow me to share some of these amazing entries with you here, gathered from four categories: Travel Portraits, Outdoor Scenes, Sense of Place, and Spontaneous Moments. [40 photos]