Yellow arches span the sky as a train thunders by in the background in Asan, South Korea on December 31, 2013. (Sang yun Lee/ Flickr) Want to see your images in our Photo of the Day posts? Use Flickr ...

U.S. News Insider Tip: Even with reservations, visitors can wait in line for over an hour to get into Arches National Park. Plan to visit at sunrise or sunset instead to beat the heat, reservation ...