The cave, beneath a farmer's field in Shropshire, was used by the medieval religious order that fought in the Crusades. Photos by photographer Michael Scott.
The hole leading into the cave looks just like a rabbit's hole. The cave itself is less than a metre underground and thought to be built as a place of worship. It was reportedly also once used by followers of a black magic cult (cool).
It contains a network of walkways that are "completely untouched", with inscriptions on many of the walls.
It is not known exactly when the cave was dug, but it is thought around 700 years ago - although some believe it was much later in the 17th century
* (via Mirror)