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="20070823155657" timestamp="2007-08-23T15:56:57Z" ns="0" title="Main Page" />
        <page value="20070823220641" timestamp="2007-08-23T22:06:41Z" ns="0" title="Camping list" />
        <page value="20070823232610" timestamp="2007-08-23T23:26:10Z" ns="0" title="Camping Info" />
        <page value="20070824000456" timestamp="2007-08-24T00:04:56Z" ns="0" title="Skillet Goulash" />
        <page value="20070824001344" timestamp="2007-08-24T00:13:44Z" ns="0" title="Recipes" />
        <page value="20071106044759" timestamp="2007-11-06T04:47:59Z" ns="0" title="Rent increase" />
        <page value="20080121223631" timestamp="2008-01-21T22:36:31Z" ns="0" title="Amp4" />
        <page value="20080202184722" timestamp="2008-02-02T18:47:22Z" ns="0" title="Wishlist" />
        <page value="20080202184801" timestamp="2008-02-02T18:48:01Z" ns="0" title="Xmas 2007 list" />
        <page value="20080210144249" timestamp="2008-02-10T14:42:49Z" ns="0" title="Yogurt Waffles" />
      </results>
    </querypage>
  </query>
</api>