National Geographic : 1946 Aug
196 The National Geographic Magazine Ii C. Suydam outingg A Breath-taking Flight of Steps Leads to the Potala's Main Entrance Yak-hair curtains protect doors from the sun. Walls slope inward; setbacks anticipate the skyscraper's. Gun slots below the windows (lower left) are nests for wild ducks. They take their young to a pond before they learn to fly; just how, no one has discovered. In this palace the Dalai Lama received President Roosevelt's gifts.