Natural Rock Jigsaw Puzzle!! We took a 160-pound stone and cut it into an oversized jigsaw puzzle using a 60,000 PSI waterjet, making it technically the world's heaviest jigsaw puzzle.

Following 15 minutes of agony, Greg was told that in order to return to the Radio 1 Breakfast Show hot seat, he must complete a giant jigsaw puzzle. With 20 pieces scattered around the UK ...