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="20121123100947" timestamp="2012-11-23T10:09:47Z" ns="0" title="Ethos" />
        <page value="20121130112146" timestamp="2012-11-30T11:21:46Z" ns="0" title="Harassment policy" />
        <page value="20130125151903" timestamp="2013-01-25T15:19:03Z" ns="0" title="The Second Tribunal" />
        <page value="20130208224821" timestamp="2013-02-08T22:48:21Z" ns="0" title="Transmission X21" />
        <page value="20130322101802" timestamp="2013-03-22T10:18:02Z" ns="0" title="Mobile" />
        <page value="20130715201041" timestamp="2013-07-15T20:10:41Z" ns="0" title="Leif Olav Jøsang" />
        <page value="20130715201404" timestamp="2013-07-15T20:14:04Z" ns="0" title="Anders Håkon Gaut" />
        <page value="20130815191543" timestamp="2013-08-15T19:15:43Z" ns="0" title="Mark Threlfall" />
        <page value="20140706184056" timestamp="2014-07-06T18:40:56Z" ns="0" title="Karl Trygve Kalleberg" />
        <page value="20140728120038" timestamp="2014-07-28T12:00:38Z" ns="0" title="Printing" />
      </results>
    </querypage>
  </query>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
</api>