Passau, DE

Our city guide. Note the different color of the water of the Inn River (upper), coming from the Alps, and that of the Danube which originates in the Black Forest of Germany.
Passau is the economic, cultural, and communications centre of south-eastern Bavaria. It has city and state libraries, a municipal theatre, and other cultural institutions.
The guide points to the place where the Ilz River enters the Danube.
http://en.wikipedia.org/wiki/Passau

The apse of St. Stephan’s Cathedral.
http://en.wikipedia.org/wiki/St._Stephen’s_Cathedral,_Passau

Mariahilfe, one of the monasteries overlooking Passau
http://www.mariahilf-passau.de/en/mariahilf-2/monastery/