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="20140415122938" timestamp="2014-04-15T12:29:38Z" ns="0" title="Hauptseite" />
        <page value="20140416070424" timestamp="2014-04-16T07:04:24Z" ns="0" title="Additional Information" />
        <page value="20140416122136" timestamp="2014-04-16T12:21:36Z" ns="0" title="Besocke Type STM Head" />
        <page value="20140427193405" timestamp="2014-04-27T19:34:05Z" ns="0" title="Legacy Commands" />
        <page value="20140704130257" timestamp="2014-07-04T13:02:57Z" ns="0" title="Tip Reshaping" />
        <page value="20140915080537" timestamp="2014-09-15T08:05:37Z" ns="0" title="Installation" />
        <page value="20140915093201" timestamp="2014-09-15T09:32:01Z" ns="0" title="Hardware Driver Installation" />
        <page value="20140915094643" timestamp="2014-09-15T09:46:43Z" ns="0" title="Hardware 2.0" />
        <page value="20150105074530" timestamp="2015-01-05T07:45:30Z" ns="0" title="QPlus Sensors" />
        <page value="20150427091001" timestamp="2015-04-27T09:10:01Z" ns="0" title="Slider Type STM Head" />
      </results>
    </querypage>
  </query>
</api>