Tucked in a valley near Maras. Impossible to see even a sign of them until standing right on the edge.
Concentric terraced circles. Pollen from many different plants and soils from all over the Andes have been found here. Temperature varies as much as 15C from top to bottom.
The theory is that it was used as a biological testing ground. The different levels mimic the different climates through the Incan lands.
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