Columbia subject headings:
Art, Modern--20th century.
Art, Modern--21st century.
Art--Italy--Rome.
Outdoor art--Italy--Rome.
Street art--Italy--Rome.
Harvard subject headings:
Art, Modern--20th century
Art, Modern--21st century
Art--Italy--Rome
Outdoor art--Italy--Rome.
Street art--Italy--Rome.
Princeton subject headings:
Art, Modern--20th century.
Art, Modern--21st century.
Art--Italy--Rome.
Outdoor art--Italy--Rome.
Street art--Italy--Rome.