Describir: The modern metropolis. Its orings, growth, characteristics and planning :

  ______     ___     _    _     _____    __   _     ______   _    _   
 /_   _//   / _ \\  | \  / ||  |  ___|| | || | ||  /_   _// | |  | || 
 `-| |,-   | / \ || |  \/  ||  | ||__   | '--' ||   -| ||-  | |/\| || 
   | ||    | \_/ || | .  . ||  | ||__   | .--. ||   _| ||_  |  /\  || 
   |_||     \___//  |_|\/|_||  |_____|| |_|| |_||  /_____// |_// \_|| 
   `-`'     `---`   `-`  `-`   `-----`  `-`  `-`   `-----`  `-`   `-` 
                                                                      
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`