Touch history in Hungary, Croatia, Serbia, Bulgaria and Romania, as you sail along the exotic lower Danube. Celtic fortifications, medieval towns and grand cities, along with the natural beauty of pastoral landscapes and the Danube’s famed Iron Gates, showcase the best of eastern Europe. Nature lovers will relish the opportunity to see Bulgaria’s natural wonder, Belogradchik, a fairytale stone world of fantastic shapes associated with interesting legends; or to bike through Belgrade’s sprawling Kalemegdan Park. Wine connoisseurs will have a chance to taste history from the centuries-old wine-growing hills dating back to the Romans in Ilok, a royal and vinous town. Be treated to the flavors, sights, sounds and cultures of this diverse swath of the continent.