Schloss Drachenburg or Drachenburg Castle is a private villa styled as a palace constructed in the late 19th century. It was completed in only two years (1882–84) on the Drachenfels hill in Königswinter, a German town on the east bank of the Rhine, south of the city of Bonn. Baron (1833–1902), a broker and banker, planned to live there but never did. The State Foundation of North Rhine-Westphalia owns the villa. An intermediate station serves it on the Drachenfels Railway.
Visiting Drachenburg Castle: If you want to visit Drachenburg Castle, you can walk from the valley station of the Drachenfelsbahn on the so-called Eselsweg past the Nibelungenhalle to the castle gate – all in all, a nice little hike of about 30 minutes. Or, another option: You can take the historic Drachenfelsbahn directly to the castle gate – but there is no reservation possible, and the train is usually crowded.
Sources : Wikipedia, entdecke-deutschland