Reconstructing a 15th Century Ship: “The World’s Largest 3-D Puzzle”

The remains of a British ship that sailed years before Columbus were found two decades ago off the coast of south Wales. After 20 years of painstaking restoration, archaeologists began to reassemble the 15th century wreckage. With almost 2,500 pieces, it is called the world’s largest 3D puzzle. The BBC’s Thomas Morgan talks about the ship preservation project in Newport.