Glass Beach in Fort Bragg, California was a dump until the 1960s but was cleaned up in the 1990s and early 2000s. Glass from bottles and other items, worn smooth by the ocean waves, color the coastal beach. You're not supposed to take the glass home, but many ignore the rules. As a result, Glass Beach may soon lose any sign of its namesake. For more on this story.
Photo courtesy Digital Sextant on Flickr (Creative Commons).