Columbia subject headings:
Harvard subject headings:
Battistero di San Giovanni (Florence, Italy)
Church decoration and ornament--Italy--Florence.
Florence (Italy)--Buildings, structures, etc.
Incrustation (Stone carving)--Italy--Florence.
Pavements--Italy--Florence.
Princeton subject headings:
Battistero di San Giovanni (Florence, Italy)
Mosaic floors--Italy--Florence.
Mosaics--Italy--Florence.