ly are identical are presented on the same page, but subtle changes have been made to one of the pictures. It's up to you to find what has been altered.

• The book is divided into four sections of pictures puzzles, each progressively more difficult.
• Includes photos of historical, popular, and culturally relevant landmarks, venues, and locations in the United States and around the world.
• An informational note called Travel Trivia accompanies each picture puzzle.
• Can't find all the changes? No problem -- solutions to all the puzzles are provided in the final section of the book.
• Spiral-bound, 192 pages.

The Brain Games Picture Puzzles series was developed to challenge your powers of observation and stimulate your ability to focus and concentrate. Stimulate your mind a few minutes at a time!