Spot-The-Difference Masterpieces: Eye-Bending Fine-Art Puzzles

 Great paintings deserve a closer look. So open your eyes and see if you can spot the differences in each of these 40 ingenious fine-art puzzles. Every spread features two versions of a masterpiece--the original on the left and one with 20 subtle changes on the right. That comes to 800 changes in all! The exquisite details will challenge your wits and reward your love of art.