This week on The Travel Detective: It’s the most populated city in South Carolina. It’s also where the first shots were fired during the Civil War. But the real history here goes back centuries, way before the cobblestone streets or the stately waterfront mansions, with a culture and tradition that still powers the city today. Let me share with you some of my hidden gems of Charleston. That’s our cover story. Plus, global warming is causing sea levels to rise. But what does that mean to your driving time on the road if you’re visiting coastal communities? And then, freezing weather has always had a chilling impact on air travel. So how do airlines cope and still operate on time? A behind-the-scenes look at how one airline has advanced the critical process of deicing its planes. All this and more on the next edition of The Travel Detective on PBS. Check your local listings.