Turns out, the oldest solar observatory in the Americas isn’t Stonehenge—it’s Chankillo in Peru! Built around 250 B.C.E., this place tracked the sun’s path every single day of the year with 13 towers, like a massive ancient calendar. Archaeologists just found evidence of even older sky-watching structures underneath, and a warrior-decorated vessel hints at a wild mix of astronomy and power. Can you imagine watching the sunrise here 2,300 years ago? #Science #Chankillo #AncientAstronomy