Old London Bridge (World Wonder)

Land units can cross without needing to embark. Acts as Road and creates Classical Roads (if not present) in land tiles on either end. +3 Faith per turn from each foreign Trade Route passing through the city. Trade Routes traveling through it can multiply the Gold they get from districts at their destination. Must be built on a Coast or Lake tile. The bridge must run straight across the hex between two land tiles directly opposite one another. At least one water tile must be present on both the left and right sides of the bridge. +3 Housing Unlock @ Tech Engineering