Photo credits and licenses

ushba.jpg
Source: https://commons.wikimedia.org/wiki/File:Ushba.jpg
Author: User:Stardancer
License: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/

kazbegi-mountains-4.jpg
Source: https://commons.wikimedia.org/wiki/File:Kazbegi_Mountains-4.jpg
Author: Sandromedia123
License: CC0
License URL: https://creativecommons.org/publicdomain/zero/1.0/

tushethi.jpg
Source: https://commons.wikimedia.org/wiki/File:Tushethi.jpg
Author: პაატა შ
License: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/

shatili-houses-4-georgia.jpg
Source: https://commons.wikimedia.org/wiki/File:Shatili_houses_4,_Georgia.jpg
Author: Vyacheslav Argenberg
License: CC BY 4.0
License URL: https://creativecommons.org/licenses/by/4.0/