Perched high on a rugged hill, Neuschwanstein offers breathtaking views of the surrounding landscape, including the shimmering Alpsee and the dense forests that cloak the region. A visit to Schwangau isn't complete without exploring this iconic landmark, where the opulence of King Ludwig II's vision comes to life in every ornate detail.

Plovdiv, one of the oldest continuously inhabited cities in Europe, carries over 8,000 years of history layered into its streets. The Roman Theater, still in use today, was discovered by accident in the 1970s and now hosts operas and concerts overlooking the Rhodope Mountains. Nearby, visitors can walk the remains of a Roman stadium buried beneath the main pedestrian street, where modern shops and cafés stand above ancient foundations.

Verona is situated at a bend of the Adige River in northern Italy. It is hard to imagine that antique arts, monuments that date back to Roman times, and the shadows of the world's most famous tragic lovers can add up to a smiling, buzzing city. Yet they do, thanks perhaps to Verona's talent for melding her past and her present, her ancient and new so gracefully that everything blends in easy harmony.

Southeast Spain's seaport of Cartagena is a large naval base on the Mediterranean coast. The city was founded in 220 B.C. and boasts Roman ruins, mosaics and murals.

Saint Augustine, Florida, is a charming tapestry of history and coastal beauty. As the oldest continuously inhabited European-established settlement in the continental United States, this historic city offers a fascinating glimpse into early American life. Founded by Spanish explorers in 1565, Saint Augustine boasts an array of colonial architecture and historic landmarks.