Columbia subject headings:
Historic buildings--England--London.
London (England)--Buildings, structures, etc.
Mansions--England--London.
Harvard subject headings:
Architecture, Domestic--England--London.
Architecture--England--London
Historic buildings--England--London
London (England)--Buildings, structures, etc.
Mansions--England--London.
Princeton subject headings:
Architecture, Domestic--England--London.
Palaces--England--London.