Long before the Incas rose to power in Peru and began to celebrate their sun god, a little known civilization was building the earliest known astronomical observatory in the Americas.
While not quite as old as sites like Stonehenge, these ancient ruins, known as Chankillo, are considered a “masterpiece of human creative genius“, holding unique features not seen anywhere else in the world.– Read the rest at ScienceAlert.com
This isn’t specifically about the Incas, but one of the precursor civilizations. We’ll list it here nonetheless since it is very interesting. It seems that the Incas were only the last in a long line of ancient civilizations that worshiped the sun.
There’s a link in the article above to a more detailed description of the site.