Describir: Techniques de conservation et de retauration des monuments :

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