Drachenfels

Drachenfels, the Dragon's Rock, a noted height of 1,650 feet in the Siebengebirge range of mountains, on the right bank of the Rhine, near Bonn. The height is steep and hard to climb, but now a railway leads to the top. On the top are the ruins of a castle, and it was on this rock that the dragon slain by Siegfried used to dwell.

Meredith's Leyend of Cologne makes a humorous use of the dragon story.