The ISIS

Part Rubik's Cube, part hieroglyphics, The ISIS ($200) has been called "the most difficult puzzle ever." Each handcrafted aluminum orb features a unique set of etched hieroglyphics which must be positioned — using 10 encrypted clues as a guide — in the right combination to unlock the ISIS. Once unlocked, the ISIS offers you access to the Award Zone, with the chance to win thousands in prizes.