Regensburg, Germany, lies at the most northerly point in the course of the Danube River, where it's joined by the River Regen and is navigable all the way to the Black Sea. Long an important trade and cultural center, Regensburg's medieval Old Town—now a UNESCO World Heritage Site—is made up of lovely old churches and fine aristocratic houses from the 13th and 14th centuries.
For those who enjoy exploring a city on foot, you can visit Regensburg's many old streets and fine historic buildings as part of a self-guided walking tour, or one led by a professional tour guide. Details of both options can be found in the city's tourist information centers.
Regensburg is a popular river cruise destination. Visitors are also drawn to this historic city for its wonderful cathedral, its Roman remains, its superb shopping, and its location at the doorstep of the Black Forest and other top tourist attractions in southern Germany.