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="20140505103331" timestamp="2014-05-05T10:33:31Z" ns="0" title="Pilates" />
        <page value="20140518144738" timestamp="2014-05-18T14:47:38Z" ns="0" title="Activity Rest Cycle" />
        <page value="20140518145216" timestamp="2014-05-18T14:52:16Z" ns="0" title="Benefits" />
        <page value="20140523110912" timestamp="2014-05-23T11:09:12Z" ns="0" title="Pain Management Programmes" />
        <page value="20140523111440" timestamp="2014-05-23T11:14:40Z" ns="0" title="Off Licence Medication" />
        <page value="20140523122957" timestamp="2014-05-23T12:29:57Z" ns="0" title="Cancer" />
        <page value="20140523124121" timestamp="2014-05-23T12:41:21Z" ns="0" title="Post-Surgical Pain" />
        <page value="20140523125049" timestamp="2014-05-23T12:50:49Z" ns="0" title="Over the Counter Mediation" />
        <page value="20140523125223" timestamp="2014-05-23T12:52:23Z" ns="0" title="Over the Counter Medication" />
        <page value="20140523140004" timestamp="2014-05-23T14:00:04Z" ns="0" title="Chronic Pain Basics" />
      </results>
    </querypage>
  </query>
</api>