An airport has at least one runway for take off and land, and mostly also some buildings like
- a tower for controlling the airplanes
- hangars for parking or maintenance
- terminal buildings for passengers and freight
- larger airports will have additional facilities for passengers like restaurants and shopping areas.
- international airports will have a custom and border control
Other airports might support helicopters (like helipads) or military verhicles (on airbases)
List of books: Airport