Sources claim these three mysterious mixed walls in Catalonia, Spain, were built in one go by Roman armies. 
But looking closer reveals a bizarre patchwork of monster boulders and polygonal cuts and other add-ons of concrete and square blocks that together don't make any sense. 
Breaking down the "Frankenstein" walls that defy official explanations.
Hope you like the video:
https://youtu.be/swP5XRm8IBI

As above so below?

Archaeologists excavating a 2,000-year-old settlement in Spain have discovered a granite stone with two completely different carvings on opposite sides.