Dating back to the time of the Celts around 500 BC, Regensburg is one of Germany’s best preserved medieval cities. Established during the Holy Roman Empire and the only German city not bombed during WWII, Regensburg has at least 1,300 listed buildings of “historic interest.” Architectural highlights of your guided walk include the Altes Rathaus (Old Town Hall), built in the 13th century, and Porta Pretoria, gates to an ancient Roman fort built in 179 AD. Wander through the city’s lanes and alleys to discover the many mansions with high towers. Wealthy families built these towers to emphasize their status and wealth during the Middle Ages, and many still remain today. Walk across the 12th-century Steinerne Brücke (Stone Bridge), the oldest of its kind in Germany. Grab a beer and enjoy an included SNACK at the Historische Wurstküche (Old Sausage Kitchen), one of Germany’s oldest restaurants. Bask in the vibrant atmosphere and take in the remarkable views along the river.