UAE residents Johnny Salvador and Mike Flamson helped National Geographic Society photographer Joe McNally scale the Burj Khalifa before posing for the camera. Courtesy Axel Schmies
UAE residents Johnny Salvador and Mike Flamson helped National Geographic Society photographer Joe McNally scale the Burj Khalifa before posing for the camera. Courtesy Axel Schmies

Dangling from the spire of Burj Khalifa for a photo shoot