Live Science reports on ancient architecture and monoliths designed to merge with figures in the sky:
An ancient astronomical alignment in southern Peru has been discovered by researchers between a pyramid, two stone lines and the setting sun during the winter solstice.
The longest of the two stone lines, called geoglyphs, runs for nearly a mile. Interspersed with these lines, researchers have also found more than 200 cairns (rock piles). The stone lines and cairns appear to be connected with four nearby ancient settlements and their pyramids.
Using 3D modeling, the researchers determined that during the time of the winter solstice, “Someone viewing the sunset from these lines during the winter solstice would have seen the sun setting directly behind, or sinking into, the adobe pyramid…Thus the pyramid and the linear geoglyph constitute part of a single architectural complex, with potential cosmological significance, that ritualized the entire pampa landscape.”