1. Svalbard Airport, Norway - This is the northernmost commercial airport in the world.
2. Courchevel Airport, France - This cliffside runway is 6,588 feet above sea level.
3. Barra Airport, Scotland - Commercial flights touch down and take off on a beach.
4. Sea Ice Runway, Antarctica - This plane can only land when the sea ice is completely frozen.
5. Matekane Air Strip, Lesotho - Passengers could plunge off the 2,000 foot tall cliff.
