Hornberg Castle is a partially ruined castle located on a steep outcrop above the Neckar valley above the village Neckarzimmern, between Bad Wimpfen and Mosbach. It is the largest and oldest of the castles in the valley.
Wikipedia https://en.wikipedia.org/wiki/Hornberg_Castle_(Neckarzimmern)
Official Website http://www.burg-hornberg.de/
Address 1 Burg Hornberg-Kapellenweg, 74865, Germany
Coordinates 49°18'50.892" N 9°8'44.202" E