Andernach, Germany (dpa) − The world’s highest cold-water geyser is to be found in Germany, 613 kilometres from the source of the River Rhine. And visitors won’t just find the fountain of bubbling water gushing out of the earth, but also lots of information about volcanic activity in the Eifel mountains, displayed in fascinating installations and dioramas. At the Geyser Centre, about an hour from the city of Cologne, you can learn about how the carbon dioxide that powers the fountain on the Namedy Peninsula on the Rhine comes from the huge magma chambers of the Laacher See volcano. The volcano…