Here is "Nasir ol Molk Mosque" in Shiraz, in South of IRAN.
I saw too many mosques around the world, whether by my own eyes or in photos. But I believe here is the most beautiful mosque you have ever seen. The magnificence of its interior design makes it special to me. Also, I wrote about its colorful windows here before.
I took these photos more than 5 years ago in the Mosque. I hope you enjoy it.