Regensburg is a city in Bavaria with around 150,000 inhabitants. Regensburg's old town with Stadtamhof has been part of the UNESCO World Heritage since 2006. Regensburg is located at the northernmost point of the Danube and at the confluence of the Naab and Regen rivers with the Danube. There are two Danube islands in the city area.
The Porta Praetoria is a Roman gate in Regensburg. Next to the larger and more completely preserved Porta Nigra in Trier, it is the only remaining Roman gate north of the Alps.
Haidplatz is a square in the heart of Regensburg's old town. It is one of numerous squares in the city centre, with Rathausplatz and Kohlenmarkt to the east and Arnulfsplatz to the west. The emergence of this very old square was always closely connected with the development of the old town. Today it is a beautiful place to enjoy a few rays of sunshine.