Cities of the World: Extreme Spot the Difference

Take a look — a close look — at the world’s most beautiful cityscapes, from Mumbai to Manhattan, and everywhere in between. Cities of the World: Extreme Spot the Difference features 42 stunning images of these metropolitan wonders. Designed to challenge experienced “spot-the-difference” puzzlers, these seemingly identical side-by-side photos each contain nearly 100 incongruities. From an obvious firework added to one skyline to a tricky-to-spot now-you-see-it-now-you-don’t bridge in the mid...