Columbia subject headings:
Harvard subject headings:
Architecture--Greece--Santorini Island.
Fortification--Greece--Santorini Island.
Santorini Island (Greece)--Buildings, structures, etc.
Santorini Island (Greece)--History.
Santorini Island (Greece)--Social life and customs.
Princeton subject headings:
Architecture--Greece--Thera Island.
Fortification--Greece--Thera Island.
Santorini Island (Greece)--Buildings, structures, etc.
Santorini Island (Greece)--History.
Santorini Island (Greece)--Social life and customs.