of no fixed subtitle
August 28, 2012
The Puzzle Of The 13 Solar Towers of Chankillo.
"Chankillo, a Peruvian 'Stonehenge', has 13 towers in a straight line. Nobody knows why but one physicists thinks that software for simulating the position of the Sun for solar panels can help."
9 years ago
Previously on MeFi.
Thanks for linking to your MeFi post. Greatly expanded an interesting subject.
Cahokia: North America's First City
Stunning Astronomical Alignment Found at Peru Pyramid