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="20120627091607" timestamp="2012-06-27T09:16:07Z" ns="0" title="Art of Fighting" />
        <page value="20120627092620" timestamp="2012-06-27T09:26:20Z" ns="0" title="The King of Fighters" />
        <page value="20120627092725" timestamp="2012-06-27T09:27:25Z" ns="0" title="Fatal Fury" />
        <page value="20120627111333" timestamp="2012-06-27T11:13:33Z" ns="0" title="Guile" />
        <page value="20120627112056" timestamp="2012-06-27T11:20:56Z" ns="0" title="SNK Vs Capcom The Match of the Millenium" />
        <page value="20120627113654" timestamp="2012-06-27T11:36:54Z" ns="0" title="Asura&#039;s Wrath" />
        <page value="20120627114538" timestamp="2012-06-27T11:45:38Z" ns="0" title="Critical Velocity" />
        <page value="20120627114747" timestamp="2012-06-27T11:47:47Z" ns="0" title="Dynasty Warriors" />
        <page value="20120702151034" timestamp="2012-07-02T15:10:34Z" ns="0" title="Capcom VS. SNK" />
        <page value="20120702151147" timestamp="2012-07-02T15:11:47Z" ns="0" title="Ridge Racer" />
      </results>
    </querypage>
  </query>
</api>