The Archaeology of a Modern City

[ed]

An interesting article about what lies beneath the streets of NYC.
http://www.nytimes.com/interactive/2016 ... -news&_r=0

The fact that there are steam pipes under there always surprised me.
http://www.nytimes.com/2014/10/10/nyreg ... -york.html

Two short articles, worth a read.

[Witness]

The fact that there are steam pipes under there always surprised me.

Not really hidden, we've seen lots of pictures like this:

http://mattweberphotos.com/wp-content/u ... -steam.jpg

And even older documents:

https://gatheredprayers.files.wordpress ... 06379v.jpg