Features

Full history of pages
ATOM feed
Fast search and backlinks
Ability to store images and other binaries
Customizable from within the wiki itself
Everything is stored as simple files
Syntax highlighting with Pygments
Carefully designed, explorable, RESTfull URLs
Good default settings
Single (zip) file
Works as standalone web server or WSGI application
Restricts the web crawlers using robots.txt and meta tags
Ability to show mathematical formulas using external service
Preview of the page being edited
Smart use of HTTP cache headers
Merging of edit conflicts