Changes

International Airport brings in a large quantity of medium and high wealth tourists into the region and helps industrial ships freight throughout out of the region. The structure is relatively cheap to build, requiring only [[alloy]], [[metal]] and [[oil]] as materials. *International airport is ideal for a region with cities specialized in [[Culture]] or [[Gambling]]. *International Airport is unlocked by having 100 or more tourists arriving at a [[Municipal Airport]] in the region.