Wikisource like Wikipedia is an on-line project of the Wikimedia Foundation which is based on the MediaWiki-Software. Texts, pictures, audio recordings stored and jointly edited there are free of copyright, either because this has expired or because the text has been released under a free license. Wikisource is splitted up into language domains, e.g. English, German, French, Hebrew (ויקיטקסט), Polish (Wikiźródła) and Russian(Викитека).
The Illustration above depicting medieval Rome is from the Nuremberg Chronicle, a current project of  German Wikisource.

 

Text also available in: German