The Men Walking Every Block in New York City

"A few years ago, William Helmreich, a sociology professor at CUNY, wrote a book called 'The New York Nobody Knows.' Helmreich had spent four years walking every block in the five boroughs—that’s a hundred and twenty thousand blocks and six thousand miles. He had produced a street-level biography of the whole city. I read it and found it fascinating. Eventually, I met Helmreich, and we walked around the Bronx together. Three things were immediately clear: he loved New York, he loved people, and the people of New York loved him. ..."
New Yorker: The City So Nice They Walked It Twice (July 29, 2015)
New Yorker: The Men Walking Every Block in New York City (Video)