New York Underground | whats there ?

Not to scale. see here the scale version
http://www.nationalgeographic.com/nyunderground/docs/scale.html

New Yorkers go about unaware of what is happening just beneath their feet: Power pulses, information flies, and steam flows. The city’s infrastructure starts just below street level, but it doesn’t stop there.

Check here the full details : http://www.nationalgeographic.com/nyunderground/docs/nymain.html