Originally Posted by ua_to_ord
...Concourse F in PHL!!
If you have a curiosity to see little rodents, there's no better place. I had to overnight - yes, the ENTIRE night - in that most dreadful of places a few weeks ago, and I emerged several rodent sightings the wiser
That's pretty bad, considering F is pretty new. I would expect they'd be around the A-East thru E terminals.