If you're ever taking a scenic drive across New Jersey (it is called the Garden State after all) look for the 134-foot tower in Edison, New Jersey housing the world's largest light bulb. The Thomas Alva Edison Memorial Tower stands on the site of Edison's Menlo Park laboratory where he perfected the first commercially practical incandescent light bulb. The 13-foot tall bulb at the top of the tower is meant to represent Edison's most famous invention, and a museum tells the story of Edison's work.