Columbia subject headings:
Harvard subject headings:
Decoration and ornament, Architectural--Iran--Sulṭānīyah.
Gunbad-i Sulṭānīyah (Sulṭānīyah, Iran)
Islamic decoration and ornament--Iran--Sulṭānīyah.
Sulṭānīyah (Zanjān, Iran)--Buildings, structures, etc.
Sulṭānīyah (Zanjān, Iran)--History.
Princeton subject headings:
Sulṭānīyah (Iran)--History.