They're both located in Europe.
asia
The Rhine Valley is located on the European Continent.
The Danube River is located in Europe.
The River Danube is located in Central and Eastern Europe. So it is in the European continent.
The Danube river is located on the continent of Europe, particularly in Central and Eastern Europe. It is the second longest river in the continent.
Europe.
The Danube is 1794 miles long, the Rhine is 820 miles long
a
Rhine, Elbe & Weser. (The Rhine and the Elbe are not totally in Germany).
The Danube River is on the continent of Europe.
the Rhine and Danube Hope it helps(: