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.

A drone has revealed that a 3,000-year-old fortress in the Caucasus Mountains is actually 40 times ... topographic features and create accurate maps of all the fortification walls, graves, field ...

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 ...