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="20120313144638" timestamp="2012-03-13T14:46:38Z" ns="0" title="System Administration" />
        <page value="20120314113935" timestamp="2012-03-14T11:39:35Z" ns="0" title="Multi-tier" />
        <page value="20120314121411" timestamp="2012-03-14T12:14:11Z" ns="0" title="Search for iBID data" />
        <page value="20120314124500" timestamp="2012-03-14T12:45:00Z" ns="0" title="NBBB System Administration" />
        <page value="20120314163704" timestamp="2012-03-14T16:37:04Z" ns="0" title="Burn Injury Data" />
        <page value="20120329080159" timestamp="2012-03-29T08:01:59Z" ns="0" title="AquilaCRS Roadmap" />
        <page value="20120425110027" timestamp="2012-04-25T11:00:27Z" ns="0" title="Windows service" />
        <page value="20120504143854" timestamp="2012-05-04T14:38:54Z" ns="0" title="User options" />
        <page value="20120531120117" timestamp="2012-05-31T12:01:17Z" ns="0" title="NNBC Trust Sites" />
        <page value="20120531120810" timestamp="2012-05-31T12:08:10Z" ns="0" title="NNBC Contacts" />
      </results>
    </querypage>
  </query>
</api>