What the researchers uncovered was remarkable.

Researchers from Cranfield University used drones to map Dmanisis Gora, a 3,000-year-old fortress in Georgia.

dmanisis gora ancient fortress

Photo:Nathaniel L. Erb-Satullo(CC BY 4.0)

dmanisis gora ancient fortress

Photo:Nathaniel L. Erb-Satullo(CC BY 4.0)

dmanisis gora ancient fortress

Photo:Nathaniel L. Erb-Satullo(CC BY 4.0)

dmanisis gora ancient fortress

Photo:Nathaniel L. Erb-Satullo(CC BY 4.0)