This photo was taken at Machu Picchu in the Andes Mountain range 2,430 metres (8,000 ft) above sea level. It is a 3D Stereo Anaglyph photo. To view you need red/cyan glasses. I took this photo after having climbed the peak in the background. With all the extra oxygen at this altitude (having come down from a trek around Mt. Salkantay with an altitude of 4600m), this seemed an easy task. Despite this, it was the most dizzy part of the journey.