Hohenzollern Castle
Hohenzollern Castle is a hilltop castle located on the Berg Hohenzollern, an isolated promontory of the Swabian Jura (NHN) above sea level, above and to the south of Hechingen, Germany approximately south of Stuttgart, capital of Baden-Württemberg. This mountain lends its name to the local geographic region, "der Zollernalbkreis", and is known among locals as "Zollerberg" (Zoller Mountain), or simply "Zoller".
Grenzau Castle
Grenzau Castle () is a ruined spur castle at near Höhr-Grenzhausen in the county of Westerwaldkreis in the state of Rhineland-Palatinate. It is the only castle in Germany with a triangular bergfried.