At Machu Picchu

What extraordinary people were the Incas?

At Machu Picchu in Peru they constructed a complex settlement high in the mountains using granite taken from even higher in the mountain. They created perfect markers for the position of the sun on the longest and shortest days of the years and for both equinoxes. They created markers that perfectly indicated the four major compass points. They created terracing in which the temperature variation between each level was exactly 0.2ºc. So well constructed was the site that it remained undamaged by two major earthquakes.

Here are images from my visit today. (Click on images to enlarge)

Driving up the mountain to Machu Picchu, we started at river level