To get the best view of a mountain you have to climb it first, right? Wrong! Granted, mountaineers have access to some fantastic vistas, but for the most stunning views of all, you don’t need to strap on the crampons and rasp your ice axe: just book yourself a ticket aboard a mountain flight. Soar over the forested slopes and valleys of Pennsylvania’s Pocono Mountains, or the jagged lunar crags and snowy peaks of Iceland’s Thorsmork Ridge, named for the hammer-wielding thunder god. Or reach for the skies with a flight over Everest itself, and watch the world’s highest mountain spike up before you like an iceberg out of an ocean of clouds.