Is the Origin of Our Skyscrapers to Be Found In 



@ Brown & Dawsou 



The home of the Cliff Dwellers, in Mesa Verde National Park, in southwestern Colorado. 

 This is the largest of the prehistoric ruins on the Mesa. The ruins are three hundred feet 

 long and contain about two hundred rooms, including twenty-two kivas, or underground 

 ceremonial chambers. Several of these may be plainly distinguished m the photograph 



