Vault and colored ceiling of the Iwan of an Imamzadeh at the tomb of Omar Khayyam, 1962, Photo by By dynamosquito via Flickr, Creative Commons Attribution-Share Alike 2.0 Generic license.
Vault and colored ceiling of the Iwan of an Imamzadeh at the tomb of Omar Khayyam, 1962, Photo by By dynamosquito via Flickr, Creative Commons Attribution-Share Alike 2.0 Generic license.