This week on The Travel Detective, you’ll find it in the central part of Mexico — the birthplace of the country’s independence — it’s rich in colonial architecture and history But  in one town, 12% of the population is American and that population is growing — and  with good reason. Peter shares with you his hidden gems of the state of Guanajuato. Plus, some sobering statistics — we’ll tell you America’s most dangerous roads when it comes to DUIs. And then, from Sigmund Freud to broken hearts, we introduce you to some unexpectedly compelling museums. All this and more on the next edition of The Travel Detective. Check your local PBS listings.