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>
    <querypage name="Ancientpages">
      <results>
        <page value="20130416090948" timestamp="2013-04-16T09:09:48Z" ns="0" title="Configuration" />
        <page value="20130823122401" timestamp="2013-08-23T12:24:01Z" ns="0" title="Connection" />
        <page value="20130823122739" timestamp="2013-08-23T12:27:39Z" ns="0" title="Common features" />
        <page value="20130823124357" timestamp="2013-08-23T12:43:57Z" ns="0" title="Transport" />
        <page value="20130823124524" timestamp="2013-08-23T12:45:24Z" ns="0" title="Application" />
        <page value="20130823134615" timestamp="2013-08-23T13:46:15Z" ns="0" title="Latency determination" />
        <page value="20130823140922" timestamp="2013-08-23T14:09:22Z" ns="0" title="Authentication and security" />
        <page value="20130826072651" timestamp="2013-08-26T07:26:51Z" ns="0" title="HLR functions" />
        <page value="20130826082724" timestamp="2013-08-26T08:27:24Z" ns="0" title="SM Format" />
        <page value="20130826090118" timestamp="2013-08-26T09:01:18Z" ns="0" title="CAMEL operations" />
      </results>
    </querypage>
  </query>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
</api>