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="20051008065952" timestamp="2005-10-08T06:59:52Z" ns="0" title="成人棒球" />
        <page value="20051009154044" timestamp="2005-10-09T15:40:44Z" ns="0" title="梅野清太" />
        <page value="20051010164750" timestamp="2005-10-10T16:47:50Z" ns="0" title="布朗" />
        <page value="20051108192203" timestamp="2005-11-08T19:22:03Z" ns="0" title="威森" />
        <page value="20051108192311" timestamp="2005-11-08T19:23:11Z" ns="0" title="吉福" />
        <page value="20051108192410" timestamp="2005-11-08T19:24:10Z" ns="0" title="羅克" />
        <page value="20051108192414" timestamp="2005-11-08T19:24:14Z" ns="0" title="美樂" />
        <page value="20051113113945" timestamp="2005-11-13T11:39:45Z" ns="0" title="Miguel Garcia" />
        <page value="20051115204014" timestamp="2005-11-15T20:40:14Z" ns="0" title="複合球棒" />
        <page value="20051124164759" timestamp="2005-11-24T16:47:59Z" ns="0" title="Wins" />
      </results>
    </querypage>
  </query>
</api>