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Space is at a premium in tiny Gibraltar—so much so that the British territory’s only airport runway intersects with its busiest road. Cars traveling along Winston Churchill Avenue must stop for planes several times a day. For about 10 minutes, traffic stays at a standstill to allow a flight to depart for—or arrive from—London, Birmingham, or Manchester.

In 2007 the government released plans for a new four-lane road that would divert traffic through a tunnel under the runway, although cars would not be required to use it. The road, scheduled to open in 2009, has still not been completed.

The airport is, by necessity, small. The Spain-Gibraltar border lies just north of the runway. South of the runway, in the shadow of the Rock of Gibraltar, is North Front cemetery, the only graveyard in the territory where burials are still conducted.

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Other risky runways:

Visit Atlas Obscura for more on Gibraltar Airport.