LOST TECHNOLOGY
How Did China Build a 560-Mile Road 2,200 Years Ago?
A 560-mile road built across rugged terrain without modern machinery—what historical records and surviving sections reveal about ancient logistics.
Arc
Lost Technology
Anomalies, systems, precision, scale contradictions, and hard-to-explain engineering.
Latest Case Files
Recent write-ups in this arc.
LOST TECHNOLOGY
Why Are These 22,000-Year-Old Grooves Perfectly Straight?
At White Sands, New Mexico, parallel grooves running alongside human footprints suggest Ice Age people used travois drag frames to move loads. The physical pattern is clear. The age—potentially 21,000 BC—is heavily debated.
LOST TECHNOLOGY
The 275-Foot 'Sage Wall' in Montana: Natural or Engineered?
On a Montana ridge sits a stone wall with straight joints and stacked blocks. Some call it proof of ancient construction. Geologists identify it as the Boulder Batholith—70-million-year-old granite that fractured as it cooled.
LOST TECHNOLOGY
They Built 60 Lodges at 11,000 Feet in Wyoming
At 11,000+ feet in Wyoming's Wind River Range, archaeologists confirmed High Rise Village—60 residential lodges built on terraced slopes. The site challenges traditional models of alpine archaeology and demonstrates sophisticated high-altitude adaptation.
LOST TECHNOLOGY
The 5,200-Hole Ridge — What the Evidence Really Shows
A closer look at Peru’s Band of Holes: alignments, pit dimensions, and what the latest research suggests about its purpose.