Whether it's a 20m drop at the end of the runway or a railway crossing right through its middle, many of the world's airports are downright bizarre.
Below is a list of what surely must be the seven weirdest on the planet.
If you get frustrated by being held up at traffic lights, then you won't be a fan of the morning commute in Gibraltar. Winston Churchill Avenue, the main road, intersects the airport's runway - so every time a plane is landing or taking off, the traffic grinds to a halt.
Location: British Overseas Territory, south of Spain.
Runway length: 1680m
Annual passenger numbers: 571,184
Tenzing Hillary Airport
At this airport in eastern Nepal, cars aren't the problem - cliff faces are. At one end of the runway a small terminal sits squashed up against a steep embankment, while at the other end, the land just drops away, leaving no room for error when taking off.
Location: Lukla, Nepal
Runway length: 527m
Annual passenger numbers: 119,801
Princess Juliana International Airport
This is probably one of the most famous airports in the world, not because of its size or passenger numbers, but because of its proximity to a beach resort. Countless photos and videos have been taken from the beach located right at the end of the runway as aircraft approach. It's become a tourist attraction in its own right, but it does come with warnings - the jet blast that can come from aircraft on the runway is often underestimated, and some have been killed from getting too close.
Location: Saint Martin, Caribbean
Runway length: 2300m
Annual passenger numbers: 1,829,543
Usually an airport is designed to serve the land it sits on, but in this case, the airport takes up almost all of the land on the island it sits on. Located off the west coast of India, the island also features a government guest house. A flight to the mainland takes about an hour and 20 minutes.
Location: Lakshadweep, India
Runway length: 1291m
Annual passenger numbers: 30,000
Juancho E Yrausquin Airport
This extremely short runway is located on the island of Saba in the Caribbean. The runway is too short for any jet aircraft to land, so it's mainly used by aircraft such as the Twin Otter or Britten-Norman Islander, the same aircraft used by Great Barrier Airlines.
Location: Saba, Caribbean
Runway length: 400m
Annual passenger numbers: 69,896
At any airport, it's to be expected that you'll hear the roar of aircraft coming and going while you wait for your flight to depart. What's far less common is hearing the sound of a tooting train, but that's exactly what you'll hear at Gisborne's airport - it has a train line running right across the runway.
Location: Gisborne, New Zealand
Runway length: 1310m
Annual passenger numbers: 150,000
Gustaf III Airport
Back to the Caribbean for the last airport on the list, where not only is the runway short, but also very steep, due to the massive hill located at one end of the runway. At the other end, there's water. Pilots don't always get it right, as you can see in this YouTube video.
Location: Saint Barthelemy, Caribbean
Runway length: 650m
What's the scariest or most interesting airport you've flown into or out of? Join our Facebook group and tell us.