Columbia subject headings:
Architecture--Italy--Florence.
Buildings--Italy--Florence.
City planning--Italy--Florence.
Florence (Italy)--Description and travel.
Oltrarno (Florence, Italy)
Piazza Tasso (Florence, Italy)
Harvard subject headings:
Architecture--Italy--Florence
City planning--Italy--Florence
Florence (Italy)--Buildings, structures, etc.
Piazza Tasso (Florence, Italy)
Plazas--Italy--Florence.
Princeton subject headings: