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="20060812064229" timestamp="2006-08-12T06:42:29Z" ns="0" title="Add Users" />
        <page value="20060817225930" timestamp="2006-08-17T22:59:30Z" ns="0" title="User Admin" />
        <page value="20060817225956" timestamp="2006-08-17T22:59:56Z" ns="0" title="Manage Users" />
        <page value="20060817230145" timestamp="2006-08-17T23:01:45Z" ns="0" title="User Administration" />
        <page value="20060817230750" timestamp="2006-08-17T23:07:50Z" ns="0" title="Pane Administration" />
        <page value="20060817233151" timestamp="2006-08-17T23:31:51Z" ns="0" title="MARVELit Portlets" />
        <page value="20060920032635" timestamp="2006-09-20T03:26:35Z" ns="0" title="User landing" />
        <page value="20061008052539" timestamp="2006-10-08T05:25:39Z" ns="0" title="Final Portal Configuration" />
        <page value="20061010020240" timestamp="2006-10-10T02:02:40Z" ns="0" title="Change Admin Password" />
        <page value="20061010022136" timestamp="2006-10-10T02:21:36Z" ns="0" title="Install DASH Pages" />
      </results>
    </querypage>
  </query>
</api>