This picture shows the Rhine valley south of Koblenz. Koblenz is a city of litte more than 100.000 inhabitants where the river Mosel flows into river Rhine. At this very point is a monument called the “Deutsches Eck” (frankly translated: German corner) which is the main tourist attraction of the city.
This pictures gives you a good understanding of what the area is like from southern Mainz to Germany’s former capital of Bonn. The part south of Koblenz is for some kilometers called the “romantic Mittelrheintal” and as such a part of the UNESCO-heritage.