Shanghai Natural History Museum.

This guide to the Shanghai Natural History Museum starts with a farmer above Hechuan in Sichuan, who found a line of giant bones jutting from a riverside cliff and simply left them exposed to the weather for years before anyone returned. It traces the 1957 excavation that finally uncovered one of China's most complete sauropod skeletons, and how scientists pieced together and named the animal that once carried that towering neck. You'll also hear why the museum itself was built in the shape of a nautilus shell around it.