The New Yorker has a great video out about what two guys are doing. New York City has over 6,000 miles of streets across five boroughs. William Helmreich and Matt Green plan to walk every last block. Though they are doing the same thing, Helmreich and Green have vastly different approaches and reasons for embarking on the journey. In this video, the two men meet for the first time and discuss their philosophies on walking. They ultimately question how—and if—New Yorkers can truly know their city. Enjoy!