Fit together so precisely that a piece of paper can’t fit between.
Sacsahuaman, Mexico.
Researchers cant figure out how to replicate it with current technology, let alone how it was built far above sea-level thousands of years ago by people who (archaeologists claim) didnt even possess knowledge of the wheel.
Ah well, just another GLARING ROADSIGN to ignore.
Pass me a beer, i wanna see what’s on tv.