Central "real estate" Park
Looking north from the GE Building's Top of the Rock deck, one can see how massive Central Park is. Central Park spans three "avenues" wide, from 5th Avenue to 8th Avenue, and 51 "streets" long, from 59th Street all the way to 110th Street. It occupies an area of 840 acres.
See notes in the photo for orientation.
It's simply amazing that such an expensive (and expansive) piece of real estate in the world's premier business city was designated a national historic landmark and so well-preserved.