9. Svalbard Airport, Norway
With its 4,000-foot-long runway built on ice, the Svalbard Airport is the northernmost airport in the world. However, due to global warming, it remains a question as to whether the airport will stay open.
10. Barra International Airport, Scotland
Located at the northeastern tip of Barra Island, the Barra International Airport is the only airport in the world that uses the beach as an airstrip. Only specially trained pilots can handle the precarious landing.