...that Oberried is home to the Barbarastollen caves, the central safekeeping archive of Germany. The Barbarastollen holds microfilms with millions of images from German archives and museums. The entire complex is buried under 400 meters of rock. It is intended to survive a nuclear war.
...that the civic symbol of Mannheim is der Wasserturm, a Romanesque water tower completed in 1886 that rises to 60 metres above the highest point of the art nouveau area Friedrichsplatz.