The "Gates" at Dariali Gorge, set amid the spectacular mountain scenery of modern Georgia, was a place of legend. It features in a wider range of ancient and medieval sources than any other mountain pass, yet it has long been ignored by archaeologists. Eberhard Sauer, Lana Chologauri and Davit Naskidashvili reveal the secrets of this remote site that for so long remained shrouded in mystery.