423a Back Door Balkans; World War I Sites; Kraków

Get insider advice for enjoying the less-visited corners of the Balkan Peninsula, from Bosnia's atmospheric mosques to Montenegro's scenic coast. And as we mark the centennial of the "Great War," hear about the most compelling places in Europe to learn about American soldiers' contributions to World War I. Plus, listen in as tour guides share their tips for enjoying Kraków, the cultural and spiritual capital of Poland.