You've been in this situation before: After arriving at Chicago O'Hare, or some other transport hub and your connecting flight is delayed by several hours.
Or maybe you have a long layover, and want to make better use of your down time. Sure, you could window shop at Hudson News, or nurse a venti soy latte at the concourse Starbucks. But depending on where you find yourself, you can now also get a quick workout, take in some world-renowned art, or even grab a shower and 40 winks.
Airports in the United States — eager to lure travelers as airlines