Columbia subject headings:
Cities and towns in art--Congresses.
Cities and towns in literature--Congresses.
Cities and towns--Europe--History--Congresses.
Harvard subject headings:
Cities and towns in art--Congresses.
Cities and towns in literature--Congresses
Cities and towns--Europe--History--Congresses
Princeton subject headings:
Cities and towns in art--Congresses.
Cities and towns in literature--Congresses.
Cities and towns--Europe--History--Congresses.