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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="20140821170643" timestamp="2014-08-21T17:06:43Z" ns="0" title="Tree ring lesson plan" />
        <page value="20140821170643" timestamp="2014-08-21T17:06:43Z" ns="0" title="Mapping lesson plans" />
        <page value="20140821170643" timestamp="2014-08-21T17:06:43Z" ns="0" title="Atmospheric variables lesson plan" />
        <page value="20140821170643" timestamp="2014-08-21T17:06:43Z" ns="0" title="Lesson plan template" />
        <page value="20140821170643" timestamp="2014-08-21T17:06:43Z" ns="0" title="Packing list for participants" />
        <page value="20140821170643" timestamp="2014-08-21T17:06:43Z" ns="0" title="Lesson plan guidelines" />
        <page value="20140821170643" timestamp="2014-08-21T17:06:43Z" ns="0" title="Template 0 night schedule" />
        <page value="20140821170643" timestamp="2014-08-21T17:06:43Z" ns="0" title="Teambuilding activities" />
        <page value="20140821170644" timestamp="2014-08-21T17:06:44Z" ns="0" title="Post-program cleanup" />
        <page value="20140821170644" timestamp="2014-08-21T17:06:44Z" ns="0" title="Weather Protocol" />
      </results>
    </querypage>
  </query>
</api>