Columbia subject headings:
Harvard subject headings:
Grand tours (Education)--Congresses.
Italy--Description and travel--Congresses.
Tourism--Italy--History--18th century--Congresses.
Tourism--Italy--History--19th century--Congresses.
Travelers' writings, European--History and criticism--Congresses.
Visitors, Foreign--Italy--History--Congresses.
Princeton subject headings:
Grand tours (Education)--Congresses.
Italy--Description and travel--Congresses.
Tourism--Italy--History--18th century--Congresses.
Tourism--Italy--History--19th century--Congresses.
Travelers' writings, European--History and criticism--Congresses.
Visitors, Foreign--Italy--History--Congresses.