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="20100702191139" timestamp="2010-07-02T19:11:39Z" ns="0" title="Five Stones" />
        <page value="20100704052258" timestamp="2010-07-04T05:22:58Z" ns="0" title="Friends in Need" />
        <page value="20101203195054" timestamp="2010-12-03T19:50:54Z" ns="0" title="Birdistan" />
        <page value="20101210032147" timestamp="2010-12-10T03:21:47Z" ns="0" title="The Lioness Hunt" />
        <page value="20101210032200" timestamp="2010-12-10T03:22:00Z" ns="0" title="Grasslands Chant" />
        <page value="20101213010315" timestamp="2010-12-13T01:03:15Z" ns="0" title="Be Prepared" />
        <page value="20101213011848" timestamp="2010-12-13T01:18:48Z" ns="0" title="Upendi" />
        <page value="20101213022516" timestamp="2010-12-13T02:25:16Z" ns="0" title="This Land" />
        <page value="20101213022525" timestamp="2010-12-13T02:25:25Z" ns="0" title="King Of Pride Rock" />
        <page value="20101213022533" timestamp="2010-12-13T02:25:33Z" ns="0" title="...To Die For" />
      </results>
    </querypage>
  </query>
</api>