The direct connection to Sacsahuaman is SUPER interesting!
I keep thinking of one of the Jacques Cousteau shows, the one in Lake Titicaca, where they had some old flakey Peruvian bird who claimed that the Inca built tunnels from Tiahuanaco (which is up by the Lake) “all the way to Cuzco” — this was according to the subtitles.
They cut in to Cousteau, with his BS meter going off, staring right into the camera, arms folded. “Cuzco. 500 miles from here.”