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="20130411082115" timestamp="2013-04-11T08:21:15Z" ns="0" title="Open gaming licence pathfinder" />
        <page value="20130411082219" timestamp="2013-04-11T08:22:19Z" ns="0" title="Open gaming license 3.5" />
        <page value="20130417144419" timestamp="2013-04-17T14:44:19Z" ns="0" title="Angelo PTF" />
        <page value="20130418152347" timestamp="2013-04-18T15:23:47Z" ns="0" title="Arconte PTF" />
        <page value="20130418152637" timestamp="2013-04-18T15:26:37Z" ns="0" title="Azata PTF" />
        <page value="20130424082015" timestamp="2013-04-24T08:20:15Z" ns="0" title="Aasimar PTF" />
        <page value="20130424082837" timestamp="2013-04-24T08:28:37Z" ns="0" title="Aboleth PTF" />
        <page value="20130507103844" timestamp="2013-05-07T10:38:44Z" ns="0" title="Aquila, Gigante PTF" />
        <page value="20130507105125" timestamp="2013-05-07T10:51:25Z" ns="0" title="Ankheg PTF" />
        <page value="20130507105207" timestamp="2013-05-07T10:52:07Z" ns="0" title="Angelo, Solar PTF" />
      </results>
    </querypage>
  </query>
</api>