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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="20110602060940" timestamp="2011-06-02T06:09:40Z" ns="0" title="Intrael" />
        <page value="20110607172706" timestamp="2011-06-07T17:27:06Z" ns="0" title="Network" />
        <page value="20110725090300" timestamp="2011-07-25T09:03:00Z" ns="0" title="Melissi Brainstorm Session" />
        <page value="20110725090310" timestamp="2011-07-25T09:03:10Z" ns="0" title="Meeting June 2011" />
        <page value="20110725090335" timestamp="2011-07-25T09:03:35Z" ns="0" title="Ipv6party" />
        <page value="20110725090409" timestamp="2011-07-25T09:04:09Z" ns="0" title="Meeting July 2011" />
        <page value="20110725090425" timestamp="2011-07-25T09:04:25Z" ns="0" title="Hellug: 5o Δ.Σ. 2011" />
        <page value="20110725090439" timestamp="2011-07-25T09:04:39Z" ns="0" title="PyGr: July 2011 Meetup" />
        <page value="20110725090748" timestamp="2011-07-25T09:07:48Z" ns="0" title="Opendata Hackathon" />
        <page value="20110725090959" timestamp="2011-07-25T09:09:59Z" ns="0" title="Mozilla Greece 20110721" />
      </results>
    </querypage>
  </query>
</api>