500 20.1 " x 20.1" Put London Bridge back together again while brushing up on your city knowledge with the London Map Puzzle . The perfect gift or keepsake for Anglophiles of all ages (5 years and up).This 500-piece square puzzle (20.1 x 20.1 in) is part of the new Map Puzzle series: puzzles featuring a beautiful overview map, accompanied by fun illustrations and facts. Collect the Japan and New York City Map Puzzles to complete the series!