Spot the Differences Vehicles 50 MindBending Photographic Puzzles Author:Christine Reguigne While using their smarts to find six differences between every pair of near-matching pictures, kids will simply enjoy examining the many marvelous vehicles each image displays. There's a copter with a sky-high view of the world below; a railway station with long, streamlined trains on the tracks; a bicyclist speeding along on his wheels; an elev... more »ated subway passing by big skyscrapers; and ships at sea. It’s a challenge and a visual delight.« less