Ancient solar calendar in Peru is now a UNESCO World Heritage Site

Wednesday, July 28, 2021 - 4:37pm

The earliest known solar observatory in the Americas has been designated a UNESCO World Heritage Site. The Chankillo Solar Observatory in northern Peru dates back to 230 BCE and its thirteen towers and two observation platforms span the entire annual rising and setting arc of the sun. Marco Werman speaks with archaeologist Ivan Ghezzi, the Director of the Chankillo project.