Ghost Hunters International - Season 2 Episode 16 -

The team makes their debut in Poland at the Wolf's Lair, Hitler's Eastern Front command post, where he spent roughly 800 days and where the attempt on his life, Operation Valkyrie, failed. Judwiga, the staff historian, tours them around the facility, where eerie noises, voices speaking German, and creepy feelings, as of being watched, abound.