I’m into extreme airports. I’m talking about high elevation. Short sloping runway. 3000′ drop at one end. No instrument approach. One way in and one way out. Lukla’s Tenzing-Hillary airport qualifies. This is the strip that a lot of people go into on their way to Mt. Everest, typically in Canadian-made DHC Twin Otters. Unfortunately, I’ve only been there in 1’s and 0’s on Flight Simulator. Maybe some day in real life.