From the US to Bhutan, a tour of white-knuckle airports
                                
                                
                                    (Newser) -
                                    The scenery is spectacular, but lofty mountaintops, stiff trade winds, and abbreviated tarmacs make for teeth-clenching landings at the world’s most harrowing runways, per 
Travel and Leisure:  
     - Paro Airport, Bhutan: Surrounded by 16,000-foot-high Himalayan peaks, what could possibly go wrong?
- Barra Airport, Scotland: Hold on tight. The roughness 
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