4 questions, each answered from published authorities with the sources listed.
Weldetensay, photograph hosted on Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Lalibela_churches.jpg), CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/); no modifications to the source imageAuthorWeldetensay · CC BY-SA 4.0File source