Columbia subject headings:
Architecture--Italy--Rome.
City planning--Italy--Rome--History--16th century.
Rome (Italy)--Buildings, structures, etc.
Sixtus V, Pope, 1520-1590--Art patronage.
Harvard subject headings:
Architecture--Italy--Rome--Conservation and restoration--History--16th century.
City planning--Italy--Rome--History--16th century.
Rome (Italy)--Buildings, structures, etc.
Rome (Italy)--History--1420-1798.
Sixtus V, Pope, 1520-1590.
Urban renewal--Italy--Rome--History--16th century.
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.