Gemarkung Onstmettingen

Hohenzollern Castle is the ancestral seat of the imperial House of Hohenzollern.  It is located atop Berg Hohenzollern, a 234-meter (768 ft) bluff rising above the towns of Hechingen and Bisingen in the foothills of the Swabian Alps of central Baden-Württemberg, Germany.

The first fortress on the mountain was constructed in the early 11th century.