Paro Airport in Bhutan is located in a deep valley near the Paro Chhu river. The airport is about a mile and a half above sea level, and is difficult -- and dangerous -- to land at because of the 18,000-foot peaks surrounding it.
As if the surrounding geography didn't make it difficult enough, the runway is also short.
The BBC's Carmen Roberts joined the pilot in the cockpit on a landing to check out firsthand what landing at Paro is like:
Pilots have to be certified to land at Bhutan's only international airport, and only a handful are, according to The Daily Mail.