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="20070722084206" timestamp="2007-07-22T08:42:06Z" ns="0" title="Simtropolis" />
        <page value="20070722092906" timestamp="2007-07-22T09:29:06Z" ns="0" title="Disneyland New Amsterdam" />
        <page value="20070823221928" timestamp="2007-08-23T22:19:28Z" ns="0" title="Modele:BigBrother" />
        <page value="20070824103811" timestamp="2007-08-24T10:38:11Z" ns="0" title="Plages de Santa Helena" />
        <page value="20070824103835" timestamp="2007-08-24T10:38:35Z" ns="0" title="Sol Ramurois" />
        <page value="20070824222442" timestamp="2007-08-24T22:24:42Z" ns="0" title="U79" />
        <page value="20070824232431" timestamp="2007-08-24T23:24:31Z" ns="0" title="Ram" />
        <page value="20070824233353" timestamp="2007-08-24T23:33:53Z" ns="0" title="SimBoat" />
        <page value="20070824233409" timestamp="2007-08-24T23:34:09Z" ns="0" title="SAT TV F1 TEAM" />
        <page value="20070825212705" timestamp="2007-08-25T21:27:05Z" ns="0" title="Quartier touristique de Ramur City" />
      </results>
    </querypage>
  </query>
</api>