"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When 2D puzzles are no longer exciting, 3D brain teasers are the way. These handheld puzzles require ...
With almost 2,500 pieces, measuring 30 metres and weighing 25 tonnes, it has been called the world's largest 3D puzzle. Archaeologists can now, after 20 years of painstaking restoration, start to ...