Human endurance truly is remarkable!One of the amazing feats of physical, mental, and emotional endurance that showcase the extraordinary capabilities of humans was Running Across America. In 1980, Frank Giannino Jr. set the record for running across the United States, covering a distance of 3,103 miles in 46 days, 8 hours, and 36 minutes. More recently, Pete Kostelnick broke the record in 2016, completing the run in 42 days, 6 hours, and 30 minutes.