portal and arch inside the tilya kori mosque in the registan of samarkand, with gold and blue details

samarkand uzbekistan madrasa mosque registan pattern muslim kori inside tilya attraction ornate tile madrasah uzbek temple madrassa texture tilyakori madrassah art architecture geometry ulughbeg religion asia travel arch heritage tourism indoor golden gold ceiling central geometric decor silk road decorative cupola persian historic ornamental religious colorful tracery door