Columbia subject headings:
Harvard subject headings:
Mausoleum of Galla Placidia (Ravenna, Italy)
Mosaics, Early Christian--Italy--Ravenna.
Mosaics--Italy--Ravenna
Ravenna (Italy)--Buildings, structures, etc.
Sarcophagi, Early Christian--Italy--Ravenna.
Sarcophagi--Italy--Ravenna.
Princeton subject headings:
Mausoleo di Galla Placidia.
Mosaics, Early Christian--Italy--Ravenna.
Mosaics--Italy--Ravenna.
Ravenna (Italy)--Buildings, structures, etc.
Sarcophagi, Early Christian--Italy--Ravenna.
Sarcophagi--Italy--Ravenna.