The average person walks 110,000 miles in a lifetime. Andrew Skurka has probably covered that in a 10-year span. He is the only person in the world to have done the Great Western Loop, which is a series of trails that total 6,875 miles. He has also completed the 7,778-mile Sea to Sea Route, which connects the Atlantic to the Pacific through Canada and the northern part of the US. He is the author of The Ultimate Hiker’s Gear Guide: Tools & Tips to Hit the Trail, a National Geographic adventurer of the year, and now, a MTNmeister.