A sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in ManhattanA sensor found on a walk in Manhattan

Doorways, automobiles, and rooftops seem to accumulate sensors. Many were out of order — presence seems more important than functionality in some cases.

A slideshow is available on Flickr.