Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
City ruins are the remnants of a destroyed city. In Civilization IV: Beyond the Sword, they are formed when you, an AI civilization, or barbarians raze a city. They are useless and can be replaced by an improvement.
Sometimes a random event occurs that says something like: "Scientists have found valuable information buried in the city ruins near <city name>." This event gives a boost for the technology you are researching.