I hope this link works. This is hotel in Tunisia is where they filmed Star Wars for Lars homestead. Click on the picture on the left to get more pictures.
I don't know if it was a hotel before Star Wars, or if somebody just thought that this would be a great place to put a hotel. It appears to me as if these underground structures may have already existed before the movie. https://en.wikipedia.org/wiki/Matmata,_Tunisia
Multiple locations in Tunisia were used: https://www.dailymail.co.uk/news/article-2336377/Photographer-stumbles-Star-Wars-sets-middle-Tunisian-desert.html
I've seen deserts in Nevada that looked more hospitable.