Was stimmt hier nicht?

Who doesn't remember the puzzle pages from the magazines of the past? Now, there's a fun challenge for young and old in a double-sided large format, featuring remarkable photographs from around the world. What appears to be two identical images at first glance reveals itself to be quite a tricky affair upon closer inspection: While some differences are immediately noticeable, discovering the others requires a significant amount of time. Eyewitnesses report on desperate individuals who spent hours poring over the book, unable to see the forest for the trees.