A Playskool jigsaw puzzle map of the United States. CBS News Soon, puzzles expanded their reach beyond learning, with puzzles depicting nursery rhymes and fairytale subjects, ships and trains.

The 'world's largest jigsaw puzzle' in Ravensburg, Germany. ... each with 252 pieces and standard puzzle motifs like animals, maps and landscapes.

These “dissected maps” were the first generation of jigsaw puzzles; following the latest educational theories of the time, they were sold as tools to make learning fun.

Some 15,000 enthusiasts have assembled the world's largest jigsaw puzzle in the southern German town of Ravensburg, Europe's biggest puzzle maker said.