Not to be confused with the Rosetta stone, the Roswell stone is a mysterious rock discovered in Roswell, New Mexico in 2004. In addition to be abnormally smooth and having unusual magnetic properties (meteorite?), the stone is carved with a mysterious pattern of triangles and crescents. Ok that’s weird, but not mysterious, until you consider that it’s the same pattern as a crop circle found in England almost two decades ago. Then again, maybe it is more like the Rosetta stone than we thought and helps us communicate with Aliens?!