cosmopolisnoun, [koz-mop-uh-lis]

  1. an internationally important city inhabited by many different peoples reflecting a great variety of cultures, attitudes, etc.

The whole city is a breathing creature. I took the subway and it was like traveling through pulsing veins. Boom boom boom, a throbbing flow. The city is so closely tied to its organisms—rats, plants, dogs, people—you get the impression that this metal jungle would die if left to its own steel skeleton and brick bones. Nothing would survive without the Central Park lungs and sinewy trees and the heat of eight million humans like cells, electricity running like nerves and synapses across a grid.

New York really knows how to show its teeth.