According to my Sunset Park photo and history supplier, Tony, 4th Avenue used to be a four-lane strip, but the City cut away sidewalks to make it wider. Here's the view looking North from 55th Street. The blocks look very short, and you can see St. Michael's spire much more clearly than in the photos I've taken to try to compare. The Coliseum (on the right) is now a church, and the Philip Foffe's Vanity Fair is now a Chinese food restaurant.
Anyone have other tidbits about the places that are seen here?