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="20120608151329" timestamp="2012-06-08T15:13:29Z" ns="0" title="Inventaire du patrimoine culturel de la Région de Fatick : Actualités" />
        <page value="20121128133824" timestamp="2012-11-28T13:38:24Z" ns="0" title="Mbam" />
        <page value="20121130133642" timestamp="2012-11-30T13:36:42Z" ns="0" title="Patar Lia" />
        <page value="20130430160058" timestamp="2013-04-30T16:00:58Z" ns="0" title="Soum" />
        <page value="20130531183405" timestamp="2013-05-31T18:34:05Z" ns="0" title="Dionouar" />
        <page value="20130620221503" timestamp="2013-06-20T22:15:03Z" ns="0" title="IVRAF FA 0133 : Keur comaandaan (la résidence du chef de subdivision)" />
        <page value="20130620221613" timestamp="2013-06-20T22:16:13Z" ns="0" title="IVRAF FA 0132 : Mairie de Foundiougne" />
        <page value="20130620223802" timestamp="2013-06-20T22:38:02Z" ns="0" title="Diaoulé" />
        <page value="20130620223824" timestamp="2013-06-20T22:38:24Z" ns="0" title="Thiaré Ndialgui" />
        <page value="20130620223856" timestamp="2013-06-20T22:38:56Z" ns="0" title="Loul Sésséne" />
      </results>
    </querypage>
  </query>
</api>