Mysteries of the Unseen World 3D 2013. This National Geographic documentary reveals phenomena invisible to the naked eye, using high-speed and time-lapse photography, electron microscopy, and nanotechnology. The film explores dimensions of time and scale too slow, too fast, or too small for human perception. Viewers witness a rattlesnake striking, lightning ascending from the ground, and popcorn popping in stunning slow motion. Time-lapse sequences capture plants reaching toward the sun and flowers blooming. Electron microscopy unveils the intricate structures on a butterfly's wing and the microscopic creatures living on human skin. The documentary examines how insects perceive ultraviolet light and how technologies give us new "superpowers" to see the world around us.