Indian Defence Review on MSN

5,200 mysterious holes have been found in Peru’s mountains, but their origin still ...

A new discovery reveals over 5,000 perfectly aligned pits on a hillside in Peru.
Earth.com

Study suggests these 5,200 holes dug into a mountain were some form of ancient accounting

Researchers say Monte Sierpe’s 5,200 aligned pits once supported trade and accounting, offering a new view of Inca-era ...