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="20080415232554" timestamp="2008-04-15T23:25:54Z" ns="0" title="New front door" />
        <page value="20080513220201" timestamp="2008-05-13T22:02:01Z" ns="0" title="Zombie" />
        <page value="20080627225343" timestamp="2008-06-27T22:53:43Z" ns="0" title="Short visit" />
        <page value="20080814051004" timestamp="2008-08-14T05:10:04Z" ns="0" title="Zombie Fetch" />
        <page value="20080826215046" timestamp="2008-08-26T21:50:46Z" ns="0" title="Door swap" />
        <page value="20090110055221" timestamp="2009-01-10T05:52:21Z" ns="0" title="Waffles" />
        <page value="20090110184928" timestamp="2009-01-10T18:49:28Z" ns="0" title="Hugh Hunts a Vampire" />
        <page value="20090110185150" timestamp="2009-01-10T18:51:50Z" ns="0" title="Timeline" />
        <page value="20090207203533" timestamp="2009-02-07T20:35:33Z" ns="0" title="Falling Star" />
        <page value="20090207221355" timestamp="2009-02-07T22:13:55Z" ns="0" title="My Lungs Absorb Air" />
      </results>
    </querypage>
  </query>
</api>