Columbia subject headings:
Schinkel, Karl Friedrich, 1781-1841--Congresses.
Schinkel, Karl Friedrich, 1781-1841--Travel--Congresses.
Harvard subject headings:
Architecture--Germany--History--19th century--Congresses.
Architecture--Germany--Italian influences--Congresses.
Architecture--Italy--Sicily--Influence--Congresses.
Neoclassicism (Architecture)--Germany--Congresses.
Schinkel, Karl Friedrich, 1781-1841--Congresses.
Princeton subject headings:
Schinkel, Karl Friedrich, 1781-1841--Congresses.
Schinkel, Karl Friedrich, 1781-1841--Journeys--Congresses.