Lunar anomalies.
Some images taken by various satellites show very strange things on the surface of the Moon. It seems that there are artificial structures on the Moon, the size of which varies from quite tiny, usually having a parallelepiped shape, to "obelisks" at least 1.5 km high.
Fans of paranormal phenomena have even "found" among these objects a large castle "hanging" high above the surface of the Moon. All this as if it points to an advanced civilization, which previously lived on the Moon and allegedly built complex structures.
NASA has never refuted these strange theories.
Forbidden History
