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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="20081001042921" timestamp="2008-10-01T04:29:21Z" ns="0" title="The Administrative Console:First Look" />
        <page value="20081021123629" timestamp="2008-10-21T12:36:29Z" ns="0" title="Page field availability" />
        <page value="20081021124314" timestamp="2008-10-21T12:43:14Z" ns="0" title="New Web Sites:First Visit" />
        <page value="20081021130638" timestamp="2008-10-21T13:06:38Z" ns="0" title="Configuration" />
        <page value="20081021131544" timestamp="2008-10-21T13:15:44Z" ns="0" title="Getting Started" />
        <page value="20081021133544" timestamp="2008-10-21T13:35:44Z" ns="0" title="Page Templates:First Look" />
        <page value="20081021140255" timestamp="2008-10-21T14:02:55Z" ns="0" title="Functions:addressStateOptions" />
        <page value="20081021140324" timestamp="2008-10-21T14:03:24Z" ns="0" title="Functions:addressCountryNameGet" />
        <page value="20081021140351" timestamp="2008-10-21T14:03:51Z" ns="0" title="Functions:addressZipDetailsGet" />
        <page value="20081021140427" timestamp="2008-10-21T14:04:27Z" ns="0" title="Functions:orderGetPayTypes" />
      </results>
    </querypage>
  </query>
</api>