1 Best Sight in Franconia and the German Danube, Germany

Porta Praetoria

In AD 179 the Romans built a rough-hewn stone gate in the northern wall of the Roman military camp. The Porta Praetoria  is one of the most interesting relics of Castra Regina. Look through the grille on its east side to see a section of the original Roman road, about 10 feet below today's street level.

Unter den Schwibbögen, Regensburg, Bavaria, 93047, Germany