See also: the New York pneumatic mail system (although that didn&#x27;t move people).
<a href="http:&#x2F;&#x2F;untappedcities.com&#x2F;2013&#x2F;03&#x2F;15&#x2F;nycs-pneumatic-tube-mail-network&#x2F;" rel="nofollow">http:&#x2F;&#x2F;untappedcities.com&#x2F;2013&#x2F;03&#x2F;15&#x2F;nycs-pneumatic-tube-mai...</a><p>(not to be confused with Beach Pneumatic Transit, although that didn&#x27;t move mail: <a href="http:&#x2F;&#x2F;www.columbia.edu&#x2F;~brennan&#x2F;beach&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.columbia.edu&#x2F;~brennan&#x2F;beach&#x2F;</a> )