Por dentro do Poço do Inferno no Iêmen

https://gulfnews.com/photos/news/photos-omani-cavers-explore-yemens-well-of-hell-1.1632472432250?slide=6
https://sunnafiles.com/2021/06/24/21495/
https://www.iflscience.com/explorers-have-finally-descended-into-yemens-fabled-well-of-hell-61066
https://www.vice.com/en/article/pkbn39/cavers-reached-the-bottom-of-an-ancient-well-of-hell-for-the-first-time
https://g1.globo.com/meio-ambiente/noticia/2021/09/25/espeleologos-encontram-serpentes-mas-nao-demonios-no-poco-do-inferno-no-iemen.ghtml
https://allthatsinteresting.com/well-of-hell
https://www.livescience.com/well-of-hell-sinkhole-yemen-descent
https://www.atlasobscura.com/articles/yemen-well-of-hell-cave-explored
https://aventurasnahistoria.uol.com.br/noticias/reportagem/conheca-o-misterioso-poco-do-inferno-o-imenso-buraco-localizado-em-um-deserto-iemenita.phtml
https://www.bbc.com/portuguese/geral-58684261
https://noticias.uol.com.br/ultimas-noticias/afp/2021/09/22/espeleologos-encontram-serpentes-mas-nao-demonios-no-poco-do-inferno-no-iemen.htm
https://www.telegraph.co.uk/world-news/2021/09/22/cavers-discover-lurks-yemens-first-time/