Courchevel airport in France is the most dangerous airport you will ever see, because the pilots need to come to it through some very high mountains and then along the valleys, and to get to the landing point.
The runway is made uphill, so that the plane will slow down quickly after the landing. Slowing down on this runway is crucial, because this is the shortest runway. The runway is only 525 meters long, about 1722 feet, and on it can land only the certified and most experienced pilots.
The pilots that come to land on this airport for the first time, need great assistance from the control tower of the airport. It is not common that first time pilots land here, often there are older pilots that are teaching the younger ones.
Disaster can happen if the pilot makes only one mistake while landing, because the runway has gradient of 18.5 %. This is much better than any brakes mounted on a plane, the gradient will slow down the plane itself, but once again the pilot needs to be very careful, because there is snow too, the snow makes the landing even more difficult than it really is.