Here is a video of GermanyBert, Sabine, and Sarge the Wunderlab search for the Diemerstein Ruins geocache. Somehow the video messes up near the end but the rest is pretty good.
Extra bonus footage of some crazy German guy yelling at his wife on the phone. It seems she has found another man.
The cache owner is L+L and they are known for creating some very cool caches around the Kaiserslautern Germany area.
The cache page is HERE