Columbia subject headings:
Architecture--Europe--History--17th century.
Architecture--Europe.
Perspective.
Space (Architecture)
Harvard subject headings:
Architecture, Modern--17th-18th centuries--Europe.
Architecture--Europe
Perspective.
Space (Architecture)
Princeton subject headings:
Architecture, Modern--17th century.
Architecture, Modern--18th century.
Architecture--Europe.
Perspective.
Space (Architecture)