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="20100704172136" timestamp="2010-07-04T17:21:36Z" ns="0" title="Custom Zones - Exp" />
        <page value="20100710175051" timestamp="2010-07-10T17:50:51Z" ns="0" title="Main-Test" />
        <page value="20100714155354" timestamp="2010-07-14T15:53:54Z" ns="0" title="Miraculous Food Quest" />
        <page value="20100717071329" timestamp="2010-07-17T07:13:29Z" ns="0" title="The Giant Slayer" />
        <page value="20100804162829" timestamp="2010-08-04T16:28:29Z" ns="0" title="Potion of Clean Magic" />
        <page value="20100810161140" timestamp="2010-08-10T16:11:40Z" ns="0" title="Class armor" />
        <page value="20100921040105" timestamp="2010-09-21T04:01:05Z" ns="0" title="ToV quests" />
        <page value="20100924015122" timestamp="2010-09-24T01:51:22Z" ns="0" title="Key to Lower Sleepers Tomb" />
        <page value="20100928021303" timestamp="2010-09-28T02:13:03Z" ns="0" title="Mage" />
        <page value="20101014211315" timestamp="2010-10-14T21:13:15Z" ns="0" title="City of Mist" />
      </results>
    </querypage>
  </query>
</api>