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>
    <images gimcontinue="1|London-uk-parliament.jpg" />
  </query-continue>
  <query>
    <pages>
      <page pageid="34105" ns="6" title="File:Batman The Long Halloween.jpg" contentmodel="wikitext" pagelanguage="en" touched="2016-01-07T09:10:53Z" lastrevid="243068" counter="" length="142" new="" />
      <page pageid="48362" ns="6" title="File:Carnival sign.JPG" contentmodel="wikitext" pagelanguage="en" touched="2016-01-07T09:10:53Z" lastrevid="454631" counter="" length="143" />
      <page pageid="17993" ns="6" title="File:Evacuationnotice.JPG" contentmodel="wikitext" pagelanguage="en" touched="2016-03-11T04:52:17Z" lastrevid="115135" counter="" length="94" new="" />
      <page pageid="32065" ns="6" title="File:Evolutions iStory.jpg" contentmodel="wikitext" pagelanguage="en" touched="2016-03-11T04:51:12Z" lastrevid="311565" counter="" length="157" />
      <page pageid="22901" ns="6" title="File:Evolutions logo.jpg" contentmodel="wikitext" pagelanguage="en" touched="2015-09-03T14:43:38Z" lastrevid="156606" counter="" length="181" />
      <page pageid="43229" ns="6" title="File:Facebook logo.jpg" contentmodel="wikitext" pagelanguage="en" touched="2011-08-27T02:03:01Z" lastrevid="323846" counter="" length="298" />
      <page pageid="9051" ns="6" title="File:French flag.jpg" contentmodel="wikitext" pagelanguage="en" touched="2015-04-08T20:37:02Z" lastrevid="55151" counter="" length="88" new="" />
      <page pageid="9052" ns="6" title="File:German flag.jpg" contentmodel="wikitext" pagelanguage="en" touched="2015-04-08T20:39:45Z" lastrevid="456461" counter="" length="88" />
      <page pageid="63117" ns="6" title="File:Godsend, Part 5.jpg" contentmodel="wikitext" pagelanguage="en" touched="2016-07-27T05:19:59Z" lastrevid="480049" counter="" length="63" new="" />
      <page pageid="29658" ns="6" title="File:Level 5 Prisoners.jpg" contentmodel="wikitext" pagelanguage="en" touched="2016-01-07T09:10:53Z" lastrevid="454240" counter="" length="41" />
    </pages>
  </query>
</api>