Researchers used drone imagery to analyze the full scope of a massive, 3,000-year-old fortress in the Caucasus mountains. Digitally stitching together 11,000 images, they created a complete map of the ...

Drone surveys revealed the fortress is over 40 times larger than previously thought, spanning more than 50 hectares.

A new drone survey has revealed that a 3000-year-old fortress in the Caucasus mountains is almost “40 ... they used a drone to survey and map the region’s human-made features.

With a richly diverse natural landscape—from the vertiginous mountain peaks of the Caucasus to the balmy rainforests of the Black Sea-fronted Adjara region—the country of Georgia offers ...