Columbia subject headings:
Harvard subject headings:
Architecture--Ireland--History.
Architecture--Northern Ireland--History.
Ireland--Antiquities.
Ireland--History.
Northern Ireland--Antiquities.
Northern Ireland--History.
Princeton subject headings:
Architecture--Ireland--History.
Architecture--Northern Ireland--History.
Ireland--Antiquities.
Ireland--Description and travel.
Ireland--History.
Northern Ireland--Antiquities.
Northern Ireland--Description and travel.
Northern Ireland--History.