Columbia subject headings:
Architecture, Renaissance--Italy--Rome.
Architecture--Italy--Rome--History.
City planning--Italy--Rome--History--16th century.
Rome--Buildings, structures, etc.
Harvard subject headings:
Architecture--Italy--Rome
City planning--Italy--Rome--History--16th century.
Rome (Italy)--Buildings, structures, etc.
Sixtus V, Pope, 1520-1590--Art patronage.
Princeton subject headings:
Architecture--Italy--Rome.
City planning--Italy--Rome--History--16th century.
Rome (Italy)--Buildings, structures, etc.
Sixtus V, Pope, 1520-1590--Art patronage.