Below is the list of all national wonders in Sid Meier's Civilization IV.

The icon after the building represents the game version, when that wonder was introduced. C4w means Sid Meier's Civilization IV – Warlords and C4bts means Sid Meier's Civilization IV – Beyond the Sword. Where no icon is displayed, that wonder comes from the base game.

Scotland Yard was national wonder until C4bts, when Espionage was introduced and it became a special building, which can be built by Great Spy. For that building, see Scotland Yard (City Building).

Every information comes from the latest patches: Civ4 1.74, C4w 2.13 and C4bts 3.19.