4.And high above Time Square in New York City, this ultra marathoner is hoping to break a world record for the longest treadmill run in 24 hours.That current record almost 154 miles.

• 纽约时代广场的高处，一名野心勃勃的马拉松运动员渴望打破24小时内骑脚踏车最远长度，目前的记录大约是154英里。