In addition to Buildings, Civilization IV also contains Wonders, which are unique structures that have high production costs, but provide additional gold, culture, or other potent benefits when completed.
While National Wonders are restricted to one per civilization, Great/World Wonders are restricted to one per game. In addition, there are also Projects, which have effects similar to Wonders.
Great (or World) Wonders can only be built once per game.
|Temple of Artemis||Polytheism|
|Great Lighthouse||Sailing, Masonry, Lighthouse, coastal cities|
|Apostolic Palace||Theology, state religion present in city||
|Spiral Minaret||Divine Right|
|University of Sankore||Paper|
|Statue of Liberty||Democracy|
|Eiffel Tower||Radio, Forge|
|Rock 'n' Roll||Radio||
|Three Gorges Dam||Plastics, riverside city|
|United Nations||Mass Media|
|Space Elevator||Satellites, Robotics|
In addition to these, the Religious Shrines could also be counted as Great Wonders.
National Wonders can be built one per civilization.
|Moai Statues||Sailing, one coastal city|
|Forbidden Palace||6 Courthouses, 8 cities||
|Globe Theatre||Drama, 6 Theaters|
|Heroic Epic||Literature, Barracks||
|National Epic||Literature, Library|
|Oxford University||Education, 6 Universities|
|Wall Street||Corporation (technology), 6 Banks|
|West Point||Military Tradition, 1 level-six unit|
|Ironworks||Steel, 6 Forges|
|Red Cross||Medicine, 6 Hospitals|
- Main article: Religious shrine (Civ4)
All shrines require a Great Prophet plus their respective religion and have the following effects:
- +1 per city with the religion
- Spreads the religion
- Can turn 3 citizens into Priests
|Christianity||Church of the Nativity|
|Judaism||Temple of Solomon|
Projects adhere to the same construction rules as Wonders except that they cannot be hurried.
All Projects are unlocked by modern-era technologies, with the exception of The Manhattan Project, which is unlocked by Fission, an industrial-era technology.
Just like World Wonders, they can only be built once per game.
Just like National Wonders, these can only be built one per civilization.
|The Manhattan Project||Fission|
|SDI||Laser, The Manhattan Project||
After the Apollo Program is completed, each Spaceship (SS) part will be unlocked by one modern technology.
|SS Cockpit||Fiber Optics||1|
|SS Docking Bay||Satellites, Robotics||1|
|SS Life Support||Ecology||1|
|SS Stasis Chamber||Genetics||1|