Columbia subject headings:
Harvard subject headings:
Architecture, Domestic--Lebanon--Beirut.
Architecture, Domestic--Lebanon.
Architecture, Domestic--Middle East.
Mansions--Lebanon--Beirut.
Windows--Lebanon--Beirut.
Princeton subject headings:
Arches--Lebanon--Beirut.
Architecture, Domestic--Lebanon--Beirut.
Beirut (Lebanon)--Buildings, structures, etc.