Archive index
Investigations
Browse all dossiers in the archive. Each investigation compiles documented claims, counterarguments, key figures, timelines, and source references.
151 DOSSIERS
Stonehenge
The prehistoric monument in Wiltshire, England, whose construction, astronomical alignments, and purpose remain subjects of debate despite centuries of study.
Nazca Lines
Massive geoglyphs in the Peruvian desert created by the Nazca culture between 500 BCE and 500 CE, whose scale and purpose remain subjects of debate.
Puma Punku
A 1,500-year-old archaeological site in Bolivia featuring precisely cut stone blocks that challenge assumptions about pre-Columbian construction capabilities.
Pyramid Construction
The enduring mystery of how the Great Pyramid of Giza and other Egyptian pyramids were built with such precision using Bronze Age technology.
Sacsayhuaman
An Inca fortress complex near Cusco, Peru, with massive interlocking stone walls whose construction precision continues to puzzle engineers.
Easter Island (Moai)
The remote Polynesian island famous for nearly 1,000 giant stone statues (moai), whose construction and transportation remain subjects of archaeological debate.