You searched for: “edifices
edifice (s) (noun), edifices (pl)
1. A building, especially one of imposing appearance or size.
2. An elaborate conceptual structure or concept on which to build a theory or process.
3. Any large, complex system, or organization.
4. A system which has been established for a long time: "It looks as if the whole political edifice of our country is about to collapse."