I may have posted on this before,but it's worth returning to. These are some of the world's oldest high rise buildings, located in Yemen, which has a rich tradition of mud brick architecture.
Building like this in hot, dry climates can make a lot of sense. Stack effects can result in cooling airflow through the building and the thick walls help moderate desert temperature swings.
And, it looks good. I prefer these simpler buildings to other Yemeni structures that have more decoration.