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>
    <pageswithprop pwpcontinue="122321" />
  </query-continue>
  <query>
    <pageswithprop>
      <page pageid="3354" ns="0" title="The Age of Reason" value="&lt;i&gt;The Age of Reason&lt;/i&gt;" />
      <page pageid="6751" ns="0" title="PH" value="pH" />
      <page pageid="32103" ns="0" title="EBay" value="eBay" />
      <page pageid="43148" ns="0" title="God and the Oval Office" value="&lt;i&gt;God and the Oval Office&lt;/i&gt;" />
      <page pageid="44836" ns="0" title="IPhone" value="iPhone" />
      <page pageid="52896" ns="0" title="E" value="e" />
      <page pageid="75342" ns="0" title="IGoogle" value="iGoogle" />
      <page pageid="90389" ns="0" title="ITunes" value="iTunes" />
      <page pageid="96984" ns="0" title="Going Rogue: An American Life" value="&lt;i&gt;Going Rogue: An American Life&lt;/i&gt;" />
      <page pageid="111419" ns="0" title="IOwnTheWorld" value="iOwnTheWorld" />
    </pageswithprop>
  </query>
</api>