Following is the command line which you want to execute when you want to download a full website and made available for local viewing.
$ wget --mirror -p --convert-links -P ./LOCAL-DIR WEBSITE-URL
- -mirror : turn on options suitable for mirroring.
- -p : download all files that are necessary to properly display a given HTML page.
- -convert-links : after the download, convert the links in document for local viewing.
- -P ./LOCAL-DIR : save all the files and directories to the specified directory.