National Geographic : 1913 Apr
Photo by Hiram Bingham THE TEMPLE OF THE THREE WINDOWS: MACHU PICCHU An exterior view of part of the Temple of the Three Windows, showing the location of a former window which was filled up at some time in the past when it was considered suitable to reduce the number of windows in this remarkable structure from five to three. Tradition says that the Incas' ancestors came out of three caves, or windows. (See Markham's "Incas of Peru," Chapter IV.) Photo byHiram Bingham THE WEST SIDE OF HUAYNA PICCHU: URUBAMBA CANON One of the great precipicessurrounding Machu Picchu and tend ing to make it an impregnablecity ofrefuge. Notice also theextra ordinary vigor of the vegetationwhich can find afooting ontheface of a sheer granite precipice under favorable climatic conditions.