A cool article I came across done by the Smithsonian. 12 subway secrets (although we already know some of them on the list of this article).
http://www.smithsonianmag.com/travel/secrets-new-york-city-subway-180958683/?no-ist
A cool article I came across done by the Smithsonian. 12 subway secrets (although we already know some of them on the list of this article).
http://www.smithsonianmag.com/travel/secrets-new-york-city-subway-180958683/?no-ist