It's really sad that Europe-centric science has taken so very long to pay real interests to the cultures of the cultures in the Americas Europeans invaded, enslaved, subjugated and abused centuries ago and have abused continually since.
Andean citizens have been treated as poorly as have Central and Northern Native citizens. Apparently you have to completely dehumanize and devaluated populations before you can feel comfortable in appropriating the land upon which they and their ancestors have lived for thousands of years!
It's really about time they were shown a little respect, one would think!
I am totally unaccustomed to seeing the circular structures. Have only comparitively recently learned Native cultures as far north as Mexico constructed circular pyramids, even!
So much ahead to learn. One almost feels there's no time to waste at all!
Thank you so much for your comments. 
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