Rooftopping photography enthusiasts enjoy climbing to locations that would make most people’s legs turn to jelly, pointing a camera straight down, and snapping a photo that commonly shows feet, a ledge, and a huge drop. While in Dubai for Gulf Photo Plus 2013, famed National Geographic photographer Joe McNally managed to snap the mother of all rooftopping photos, seen above. The Instagram snap was captured from the tip of the Burj Khalifa, the tallest manmade structure in the world.