Drachenburg Castle is a stunning neo-Romanesque castle located on the Drachenfels hill in Bonn, Germany. Built between 1882 and 1884 by the wealthy businessman Stephan von Sarter, the castle features intricate architecture and beautiful views of the Rhine River. The castle was never fully completed and was used as a private residence until the early 20th century. Today, it is a popular tourist attraction, offering guided tours and exhibitions that showcase its history and design. Visitors can also enjoy scenic hiking trails in the surrounding Siebengebirge mountain range.