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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="20061110093551" timestamp="2006-11-10T09:35:51Z" ns="0" title="LAFD" />
        <page value="20061110094000" timestamp="2006-11-10T09:40:00Z" ns="0" title="Amoskeag Locomotive Works" />
        <page value="20061110094501" timestamp="2006-11-10T09:45:01Z" ns="0" title="Fire apparatus" />
        <page value="20061110094807" timestamp="2006-11-10T09:48:07Z" ns="0" title="Wilmington, California" />
        <page value="20061110100828" timestamp="2006-11-10T10:08:28Z" ns="0" title="Fire retardant foam" />
        <page value="20061110101226" timestamp="2006-11-10T10:12:26Z" ns="0" title="Old Fire" />
        <page value="20061110101640" timestamp="2006-11-10T10:16:40Z" ns="0" title="Wildfire" />
        <page value="20061110102550" timestamp="2006-11-10T10:25:50Z" ns="0" title="Fire prevention" />
        <page value="20061110103225" timestamp="2006-11-10T10:32:25Z" ns="0" title="Hazardous material" />
        <page value="20061110103618" timestamp="2006-11-10T10:36:18Z" ns="0" title="Fire hydrant" />
      </results>
    </querypage>
  </query>
</api>