Let's face it, connecting flights can suck. Well, maybe not. If you're a savvy traveler, layovers can be fun. You get the opportunity to see a place you might not have seen otherwise, and you also get to extend your vacation ever so slightly. For the sake of this article, let's assume you have a layover between 4 - 24 hours. Any less and you should probably stay at the airport. Any longer, and you should definitely get a hotel for the night.
Quite a few airports offer free guided...