Describir: Bridges and how they are built /

             ___      ____      ______    _____     ______    ______  
    ___     / _ \\   |  _ \\   /_   _//  / ____||  /_   _//  /_____// 
   /   ||  / //\ \\  | |_| ||   -| ||-  / //---`'   -| ||-   `____ `  
  | [] || |  ___  || | .  //    _| ||_  \ \\___     _| ||_   /___//   
   \__ || |_||  |_|| |_|\_\\   /_____//  \_____||  /_____//  `__ `    
    -|_|| `-`   `-`  `-` --`   `-----`    `----`   `-----`   /_//     
     `-`                                                     `-`      
 _    _   
| || | || 
| || | || 
| \\_/ || 
 \____//  
  `---`