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="20090406064427" timestamp="2009-04-06T06:44:27Z" ns="0" title="SMIL Playlists" />
        <page value="20090406072601" timestamp="2009-04-06T07:26:01Z" ns="0" title="Sequential playlist (seq)" />
        <page value="20090409111937" timestamp="2009-04-09T11:19:37Z" ns="0" title="WSDL" />
        <page value="20090929053341" timestamp="2009-09-29T05:33:41Z" ns="0" title="Pull mode" />
        <page value="20090929074801" timestamp="2009-09-29T07:48:01Z" ns="0" title="Parallel playlist (par)" />
        <page value="20091106052640" timestamp="2009-11-06T05:26:40Z" ns="0" title="Products: Media players" />
        <page value="20091118101804" timestamp="2009-11-18T10:18:04Z" ns="0" title="Best Practice" />
        <page value="20091120055603" timestamp="2009-11-20T05:56:03Z" ns="0" title="Fit options" />
        <page value="20091120055640" timestamp="2009-11-20T05:56:40Z" ns="0" title="Layout" />
        <page value="20091130041125" timestamp="2009-11-30T04:11:25Z" ns="0" title="MediaRSS" />
      </results>
    </querypage>
  </query>
</api>