Have you ever wanted to set a world record? Be the first person to do something, or have the record for doing it the fastest?
Holly "Cargo" Harrison walked from the most southern city in South America, Ushuaia, Argentina, to the most northern spot in North America, Prudhoe Bay, Alaska. That’s almost 15,000 miles on foot!
He had to pass through some dangerous countries and even had a heart attack partway through, but he kept going when he was released from the hospital.
He says he did it because no one’s ever done it before, all at once.
Watch two videos about his giant hike: