Old Mariscal Sucre International Airport, Ecuador

The Old Mariscal Sucre International Airport was the worst nightmare for pilots, even for the most experienced. To begin with, it was a high-altitude airport that lay right in the heart of Ecuador’s densely populated capital, a fact that dramatically increased the risk factors. Furthermore, the mountainous terrain, the many active volcanoes, and a valley prone to fog made landing there a mission impossible, while the icing on the cake was the horrible runway that was known for being notoriously bumpy. Fortunately, it finally closed and was replaced by the new Mariscal Sucre International Airport last year.