Photo by Hiram Bingham 

 THE DEF]SNSES OF THE CITY : THE NORTHERN TERRACES, MACHU PICCHU 

 On the north side of the city there was little danger of attack, but in order to strengthent 

 the nearly impassible diffs and precipices, narrow terraces that could be used both for 

 agricultural and defensive purposes were constructed (see page 453) 



450 



