Does Drupal have wiki functionality? (Score 1)

Just a quick questions to those who know Drupal. Does it have a wiki-extension? Can it be configures in such a way, that all users (resitered and anonymous) could edit all wiki pages (like on Wikipedia)?

Will appreciate the answer, the only Drupal wiki module I found was designed to allow wiki-formatting in "forums", "pages" and "stories".

postrational