Topic: Polygonal Walls

The dating of Peruvian megaliths is challenged by the lack of original colonial documents and the presence of non-human elongated skulls in the same regions. Ivanova points out that identical polygonal masonry appears in relatively young structures, such as medieval fortresses in Japan and 18th-century buildings in Saint Petersburg. This suggests that the technology to create these walls was available much more recently than the 12,000-year-old "Ice Age" theory posits.