Wards Wiki is the first in a huge family of wiki variations. As the prototypical wiki, it is missing a lot of features supported by Hyper Text Markup Language and other more modern wikis such as Media Wiki. Most of the omissions are intentional Wiki Design Principles.
Headers
Custom fonts
Text color and background color
Other markup, like strikeout and underline
Raw HTML (see Why Doesnt Wiki Do Html)
Inter Wiki Map (but there is a small collection of Sister Sites instead)
Background images
File upload
Templates
Version Control Applied To Wiki (except for the last few edits)
Wiki Namespaces (e.g. talk pages)
Page Hierarchy and Sub Pages
See original on c2.com 