The aliens have arrived, and in spite of all their advanced technology, they're feeling a little lost. Have some 3-D fun while you guide them around our big blue planet. Put on the enclosed 3-D glasses and watch these brilliantly colored labyrinths pop right off the page. Some of the mazes offer twice the excitement with double-paged spreads. And don't worry—complete solutions guarantee that you'll be able to find your way before the visitors get impatient and vaporize you.