Modern Marvels : Season 21

Adrenaline runs high when Adam Richman visits the factory where Yamaha makes ATVs, Waverunners and more. Then, we get an inside look at a company built to get people sky-high in paramotors, as well as amusement park Diggerland USA, a place you have to see to believe. Can mech-suits become the sport of the future? Plus, learn all about a personal submarine built for under-sea sightseeing for two.