Vasiliadis, Thomas wrote:
is there a spezial page "all templates" or
any other way to show all
templates of a wiki?
Yes, try Spezial:Allpages and pick "Vorlage" from the Namensraum-List.
In English installs, this would be the Special:Allpages page and
choosing "Templates" from the Namespace dropdown list.
Hínandil