Kikhani Fortress in Adjara
Mountainous Adjara is a spectacular area to explore. The route to the fortress is quite windy but offers great panoramic views. Similar to other hiking trails mentioned on this list, this one might not be for everyone. In addition, the weather changes quite frequently, so you might get caught in rain and fog and you might not be able to make it up to the fortress at all.
Khulo village, Adjara, Georgia

View from the fortress | © კოლხი / WikiCommons