No, it's not an optical illusion- the globe is really levitating! The Floating Globe is the perfect novelty item for anyone with a curiosity streak. Fits perfectly in any office, home, or classroom setting! The globe uses magnets, not air, to levitate, and therefore you can pass your hands above, below, and around it, and leave everyone amazed that the globe is "magically" still afloat!
http://www.ankaka.com/magnetic-floating-globe_p46669.html Magnetic Floating Globe