Columbia subject headings:
Historic buildings--England--London.
London (England)--Buildings, structures, etc.
London (England)--Description and travel.
London (England)--History.
Harvard subject headings:
Historic buildings--England--London
London (England)--Buildings, structures, etc.
London (England)--Description and travel.
London (England)--History.
Princeton subject headings:
London (England)--Description and travel.
London (England)--Historic houses, etc.
London (England)--History.