For over six years, and for reasons he can't explain, Matt Green, 37, has been walking every block of every street in New York City - a journey of more than 8,000 miles. THE WORLD BEFORE YOUR FEET tells the story of one man's unusual personal quest and the unexpected journey of discovery, humanity, and wonder that ensues. 　　《未踏足的世界》的上映日期是2018-03(美国)。