Sounds like you could use a map:
http://strangemaps.files.wordpress.com/2007/02/newyorker2.JP...
(Discussion:
http://bigthink.com/ideas/21121
And, from 40 years prior:
http://maps.bpl.org/details_10595/?mpubl_id=159
http://www.georgeglazer.com/archives/maps/archive-nyc/nyersi... ).