Alternative researchers (Brien Foerster, Hancock in Fingerprints of the Gods) argue the machined-looking blocks imply lost technology, and some propose far older dates.
The mainstream view
Archaeologists date the complex to the Tiwanaku state (c. 500–1000 CE); studies of the blocks show standardised modules, stone tools and possibly moulding of sandstone elements.
We present both views respectfully and link to the original work so you can judge for yourself.
Researchers presented at EGU25 the first cosmogenic-nuclide exposure dating of Tiwanaku’s stone structures, which measures how long surfaces have faced the sky.
Author and long-time Peru resident who leads Hidden Inca Tours. He researches megalithic stonework, elongated skulls and pre-Inca construction in Peru, Bolivia and Egypt.
British author and former Economist correspondent whose books Fingerprints of the Gods, Magicians of the Gods and America Before argue for a lost Ice Age civilisation. He presented Netflix’s Ancient Apocalypse and hosts tours in Egypt, Turkey (Türkiye) and Peru/Bolivia in 2027.