Folders in server root ("www") :
         administrator
         cache
         components
         images
         includes
         language
         libraries
         logs
         media
         modules
         photo
         plugins
         templates
         tmp
         video
         wdownloads
         xmlrpc

This page display folders in server root. You can delete this page if you want to organize differently the folder. There'e a backup oh this file in "safe" directory (index-safe.php).