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>
    <querypage name="Ancientpages">
      <results>
        <page value="20100820122536" timestamp="2010-08-20T12:25:36Z" ns="0" title="Subversion" />
        <page value="20100820123351" timestamp="2010-08-20T12:33:51Z" ns="0" title="Visual Sourcesafe" />
        <page value="20100820123522" timestamp="2010-08-20T12:35:22Z" ns="0" title="Bazar" />
        <page value="20100822210659" timestamp="2010-08-22T21:06:59Z" ns="0" title="Avast" />
        <page value="20100827212610" timestamp="2010-08-27T21:26:10Z" ns="0" title="Umstieg auf JAWS 11" />
        <page value="20100828205056" timestamp="2010-08-28T20:50:56Z" ns="0" title="Mailingliste Blinde-Misc" />
        <page value="20100828205558" timestamp="2010-08-28T20:55:58Z" ns="0" title="Mailingliste Waschweib" />
        <page value="20100829222903" timestamp="2010-08-29T22:29:03Z" ns="0" title="Mailingliste Blindhelp" />
        <page value="20100910044437" timestamp="2010-09-10T04:44:37Z" ns="0" title="Super Collider" />
        <page value="20101003082907" timestamp="2010-10-03T08:29:07Z" ns="0" title="Wir über uns" />
      </results>
    </querypage>
  </query>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
</api>