What on Earth?
Season 12 Episode 5 - Blood Feud of Gresham Castle
6.4 ?
2015
Documentary
Satellite images capture a mysterious fortification concealed beneath a patch of woodland in the remote stretches of Norfolk, England; experts investigate rival royal families and a lost castle that was destroyed during a medieval blood feud.
Episodes in Season 12
1
Bullseye in the Sky
42 min
2
Mystery of the Fallen Star
42 min
3
Indiana's War Factory
42 min
4
Turkey's Lost Terror Dome
42 min
5
Blood Feud of Gresham Castle
42 min
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6
The Boneyard of Arizona
42 min
7
Nevada's Mystery Marking
42 min
8
Ghost Ship of Ireland
42 min
9
Secrets of Biosphere 2
42 min
10
