You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20120405221334" timestamp="2012-04-05T22:13:34Z" ns="0" title="Funktionsweise der Cite Extension" />
        <page value="20120405221335" timestamp="2012-04-05T22:13:35Z" ns="0" title="Funktionsweise der Cite Extension2" />
        <page value="20120405221336" timestamp="2012-04-05T22:13:36Z" ns="0" title="Gchart4MW" />
        <page value="20120405221340" timestamp="2012-04-05T22:13:40Z" ns="0" title="Pchart4MW" />
        <page value="20120405221341" timestamp="2012-04-05T22:13:41Z" ns="0" title="Suchen&amp;Ersetzen-Syntax mit RegExp" />
        <page value="20120405221341" timestamp="2012-04-05T22:13:41Z" ns="0" title="Text-Templates für drag&amp;drop" />
        <page value="20130722222557" timestamp="2013-07-22T22:25:57Z" ns="0" title="MusterHauptseite" />
        <page value="20140107221543" timestamp="2014-01-07T22:15:43Z" ns="0" title="Anfahrt" />
        <page value="20140121152033" timestamp="2014-01-21T15:20:33Z" ns="0" title="Downloads:Sportgeschichte vernetzt, Oktober 2013" />
        <page value="20140128121045" timestamp="2014-01-28T12:10:45Z" ns="0" title="Downloads" />
      </results>
    </querypage>
  </query>
</api>