Ripley Twists: Mighty Machines

Ripley’s Believe It or Not! presents the Twists—an award-winning series bringing a fun, engaging and uniquely Ripley’s approach to a whole range of topics. Each title blends stunning full-color photographs and illustrations with clear explanations and unbelievable-but-true facts. In Machines you will find key information on everything from monster truck wheels to Bigfoot, whose giant tires were made in the 1950s for the US Army to use on an Arctic snow train.