Almost 2,000 years ago, the Romans founded the imperial town of Regensburg around the northernmost reaches of the Danube River. Originally a Roman camp based around the Castra Regina fort, this perfectly preserved medieval town is home to around 1,400 architectural monuments from the Middle Ages. Regensburg was a seat of the German emperors and the Bavarian dukes for centuries following Charlemagne's reign. In the Late Middle Ages, overseas merchants made the free imperial town one of the most prosperous in central Europe. Stretching 300 meters and with 15 huge stone arches, the famous 12th century bridge over the Danube is the second-oldest in Germany. Regensburg's old town is the largest complex of original Romanesque and Gothic architecture north of the Alps. It is home to an array of outstanding man-made structures, including the Romanesque Scots' Portal and the Regensburg Cathedral, which is the only French Gothic cathedral east of the Rhine. Alongside its two towers, which rise to a height of 105 meters, the cathedral is blessed with some of the finest medieval stained glass in Germany.
For more info check: www.regensburg.de