Photo: Stephan Mense (user FEXX), CC BY-SA 3.0 via Wikimedia Commons
'Drachenfels' is a Magma outcrop in Königswinter where, according to legend, Siegfried slayed the dragon that lived on the mountain. Have a coffee there and enjoy the nice view down to the Rhine valley.
The Drachenfels is a hill in the Siebengebirge uplands between Königswinter and Bad Honnef in Germany. The hill was formed by rising magma that could not break through to the surface, and then cooled and became solid underneath. It is the subject of much tourism and romanticism in the North Rhine-Westphalia area.
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Schloss Drachenburg is sort of a fairytale castle built in the late 19th century. If you climb up to Drachenfels by foot, you can take a rest here and stroll through the park gardens. In the castle you'll find a small exhibition on the castle's history
Train to the Drachenfels - this railway is the oldest in Germany with a cog wheel.