The medieval townscape of the former free imperial city is characterised by red roofs, churches, towers, turrets and townhouses from the 12th to 14th centuries. Built in stone, they were a symbol of the wealth of what was then the richest town in southern Germany.The Danube and the Stone Bridge
The heavily laden carts of the rich Regensburg trading merchants were crossing the 330 metre “Steinerne Brücke”, a masterpiece of medieval engineering, 850 years ago. It is the oldest preserved stone bridge in Germany, and affords the best view of the town .St. Peter's Cathedral
The colourful stained glass windows dating back to the 13th and 14th centuries are particularly impressive. The most notable feature of the cloisters, once a burial place for Regensburg residents and canons, is the Gothic rib-vault ceiling. The All Saints Chapel designed by north Italian architects evokes associations with Ravenna.Porta Praetoria
The Porta Praetoria ranks alongside the Porta Nigra in Trier as the largest preserved Roman building in Germany. In was built in around AD 179 under Emperor Marcus Aurelius during the construction of the Roman fort Castra Regina.