Concourse B of the Airside Terminal of <a href="https://en.wikipedia.org/wiki/Pittsburgh_International_Airport" class="extiw" title="en:Pittsburgh International Airport">en:Pittsburgh International Airport</a> in January 2010.
<a href="//commons.wikimedia.org/wiki/User:Weatherman1126" title="User:Weatherman1126">John Marino</a>
<span class="int-own-work" lang="en">Own work</span>