Columbia subject headings:
Architecture, Modern--20th century.
Architecture, Modern--21st century.
Artificial ruins.
Ruined buildings.
Ruins, Modern.
Harvard subject headings:
Architecture, Modern--21st century
Artificial ruins
Ruined buildings.
Ruins, Modern.
Princeton subject headings:
Architecture, Modern--20th century.
Architecture, Modern--21st century.
Artificial ruins.
Ruined buildings.
Ruins, Modern.