In this photo taken by Lakpa Tenzi Sherpa on Thursday, Lukla airport located in Khumbu of Solukhumbu district in Sagarmatha Zone wears a deserted look. Labeled as one of the busiest airport in the world, it has witnessed comparatively small number of flights since a couple of weeks. Also known as Tenzing-Hilary Airport, the first explorers and adventurers, it is regarded as one of the most dangerous airport of the world. It is located 2800 meters above the sea level amongst the beautiful high mountains. Photo: Lakpa Tenzi Sherpa/Nepal Mountain Focus.