Children's Underground Map Jigsaw Puzzle by Paul Jackman (1997). Published with London Transport Museum. 500 piece jigsaw puzzle - Finished size: 27" x 18". Released July 2012.
Most fun I have had with puzzles. Been there and memories came flooding back. Did it in four hours, because, like eating popcorn, I could not stop picking up pieces. pieces are great quality, medium size, great to do with older pre-teens .