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Buildings are built only within cities and typically provide bonuses to only that city. These bonuses range from increased resources to increased defensive capabilities. Their method of construction is identical to units, requiring a certain number of Production units to be constructed, which may take one or more turns. Once constructed, a building may only be destroyed by the Spies of an opposing force.
Buildings have been roughly categorized into the following categories:
| Cost | Effect | Required Tech[1] | |
|---|---|---|---|
| Region Boosters | |||
| Granary | 40 | Plains regions provide an additional: +2 Food | Pottery (1) |
| Trading Post | 60 | Desert regions provide an additional: +2 Trade | Code of Laws (3) |
| Workshop | 60 | Hills regions provide an additional: +2 Production | Construction (3) |
| Harbour | 100 | Sea regions provide an additional: +1 Food | Navigation (4) |
| Iron Mine | 80 | Mountain regions provide an additional: +4 Production | Railroad (7) |
| Production Boosters | |||
| Temple | 40 | Culture +1 per Citizen | Ceremonial Burial (1) |
| Cathedral | 160 | Culture +2 per Citizen (replaces Temple) | Religion (5) |
| Library | 40 | Doubles (2x) Science production at this city | Alphabet (1) |
| University | 160 | Quadruples (4x) Science at this city (replaces Library) | University (5) |
| Market | 60 | Doubles (2x) Gold production at this city | Currency (4) |
| Bank | 120 | Quadruples (4x) Gold production at this city (replaces Market) | Banking (5) |
| Factory | 200 | Doubles (2x) Production at this city | Industrialization (7) |
| Miscellaneous | |||
| Palace | 0 | Provides a Culture bonus to this city. May not be built and is only present in the Capital | None |
| Barracks | 40 | New units start as Veterans (+50% Combat) | Bronze Working (1) |
| Walls | 100 | Grants defending units a bonus to Defense and renders the City immune to Culture Flipping | Masonry (2) |
| Courthouse | 80 | Increases harvestable regions by 1 square along each existing border | Literacy (3) |
| Aqueduct | 120 | City growth +50% (Food Requirements -33%) | Engineering (4) |
| Spaceship Fuel | 80 | One of four Spaceship parts necessary for a Technological victory. Building more than one SS Fuel will make the Spaceship trip faster | Space Flight (10) |
| Spaceship Propulsion | 200 | One of four Spaceship parts necessary for a Technological victory. Building more than one SS Propulsion will make the Spaceship trip faster | Space Flight (10) |
| Spaceship Life Support | 120 | One of four Spaceship parts necessary for a Technological victory. Building more than one SS Life Support will increase the player's final score | Space Flight (10) |
| Spaceship Habitation | 400 | One of four Spaceship parts necessary for a Technological victory. Building more than one SS Habitation will increase the player's final score | Space Flight (10) |
| SDI Defense | 200 | Intercepts an ICBM | Superconductor (11) |