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="20140630130402" timestamp="2014-06-30T13:04:02Z" ns="0" title="Kontakt" />
        <page value="20140703152959" timestamp="2014-07-03T15:29:59Z" ns="0" title="Kiribati XML" />
        <page value="20141121123926" timestamp="2014-11-21T12:39:26Z" ns="0" title="Weiterbilden.at" />
        <page value="20150310210238" timestamp="2015-03-10T21:02:38Z" ns="0" title="Veranstaltungen Evaluation" />
        <page value="20150311081722" timestamp="2015-03-11T08:17:22Z" ns="0" title="Kann eine stornierte Anmeldung wieder auf den Status &quot;B&quot; für &quot;Belegt&quot; gesetzt werden?" />
        <page value="20150311090718" timestamp="2015-03-11T09:07:18Z" ns="0" title="Linz" />
        <page value="20150312100317" timestamp="2015-03-12T10:03:17Z" ns="0" title="Andere" />
        <page value="20150312140159" timestamp="2015-03-12T14:01:59Z" ns="0" title="MBW" />
        <page value="20150316115726" timestamp="2015-03-16T11:57:26Z" ns="0" title="Hauptseite" />
        <page value="20150401094624" timestamp="2015-04-01T09:46:24Z" ns="0" title="Agitos" />
      </results>
    </querypage>
  </query>
</api>