An aside: I'm struck how beautiful are the wind catchers. A form of beautiful architecture with a practical function, seamlessly rising up from many buildings.
Any guess as to why there are multiple poles sticking from the sides? Reinforcement? Method of adjustment? Place for someone to stand while working on the structure? An inside joke meant to confuse foreigners?
More images via search: https://duckduckgo.com/?q=Yazd+wind+catcher&t=ffab&iar=image...