Does each bay have a brick dome around it ?
This very distinct style of architecture was inherited to them from the Seljuq dynasty , who for centuries had used it in their mosque building throughout Central - Asia , but it was perfected during the Safavids when they invented the " haft - rangi " , or seven - colour style of tile burning , a process that enabled them to apply more colours to each tile , creating richer patterns , sweeter to the eye .