Nature's Own Showers: This is the Emerald Pool, way up in The Alps, Austria. I'm guessing that not even this photo does justice to the colors that gave this body of water its name. (photo by andreasresh)
Image: Courtesy of San Alfonso del Mar. “The World’s Largest Swimming Pool, is located at the San Alfonso del Mar Resort. We set out to find the most beautiful pools in the world! Check out 10 of our top favorites below.