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>
    <allimages aicontinue="Backscratcher_9.0_icon1.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="B-29_party_favor_icon1.jpg" timestamp="2016-10-14T16:04:56Z" url="https://www.destinygamewiki.com/mediawiki/images/5/54/B-29_party_favor_icon1.jpg" descriptionurl="https://www.destinygamewiki.com/wiki/File:B-29_party_favor_icon1.jpg" ns="6" title="File:B-29 party favor icon1.jpg" />
      <img name="B-line_medal1.png" timestamp="2015-09-11T17:16:28Z" url="https://www.destinygamewiki.com/mediawiki/images/8/8d/B-line_medal1.png" descriptionurl="https://www.destinygamewiki.com/wiki/File:B-line_medal1.png" ns="6" title="File:B-line medal1.png" />
      <img name="B-line_trauma_icon1.jpg" timestamp="2014-12-05T03:37:24Z" url="https://www.destinygamewiki.com/mediawiki/images/e/ec/B-line_trauma_icon1.jpg" descriptionurl="https://www.destinygamewiki.com/wiki/File:B-line_trauma_icon1.jpg" ns="6" title="File:B-line trauma icon1.jpg" />
      <img name="B_line_trauma_icon1.png" timestamp="2014-09-25T06:30:51Z" url="https://www.destinygamewiki.com/mediawiki/images/a/a0/B_line_trauma_icon1.png" descriptionurl="https://www.destinygamewiki.com/wiki/File:B_line_trauma_icon1.png" ns="6" title="File:B line trauma icon1.png" />
      <img name="Babylon91911.jpg" timestamp="2014-09-21T09:04:58Z" url="https://www.destinygamewiki.com/mediawiki/images/8/8c/Babylon91911.jpg" descriptionurl="https://www.destinygamewiki.com/wiki/File:Babylon91911.jpg" ns="6" title="File:Babylon91911.jpg" />
      <img name="Babylon_9191_icon1.jpg" timestamp="2014-09-21T12:54:52Z" url="https://www.destinygamewiki.com/mediawiki/images/d/d3/Babylon_9191_icon1.jpg" descriptionurl="https://www.destinygamewiki.com/wiki/File:Babylon_9191_icon1.jpg" ns="6" title="File:Babylon 9191 icon1.jpg" />
      <img name="Back_in_action1.jpg" timestamp="2014-06-28T21:34:59Z" url="https://www.destinygamewiki.com/mediawiki/images/3/3d/Back_in_action1.jpg" descriptionurl="https://www.destinygamewiki.com/wiki/File:Back_in_action1.jpg" ns="6" title="File:Back in action1.jpg" />
      <img name="Back_in_action_medal1.png" timestamp="2014-07-18T12:00:33Z" url="https://www.destinygamewiki.com/mediawiki/images/f/f4/Back_in_action_medal1.png" descriptionurl="https://www.destinygamewiki.com/wiki/File:Back_in_action_medal1.png" ns="6" title="File:Back in action medal1.png" />
      <img name="Backhanded_compliment_icon1.jpg" timestamp="2014-12-05T03:37:25Z" url="https://www.destinygamewiki.com/mediawiki/images/8/8d/Backhanded_compliment_icon1.jpg" descriptionurl="https://www.destinygamewiki.com/wiki/File:Backhanded_compliment_icon1.jpg" ns="6" title="File:Backhanded compliment icon1.jpg" />
      <img name="Backhanded_compliment_icon1.png" timestamp="2014-09-25T06:30:52Z" url="https://www.destinygamewiki.com/mediawiki/images/c/c9/Backhanded_compliment_icon1.png" descriptionurl="https://www.destinygamewiki.com/wiki/File:Backhanded_compliment_icon1.png" ns="6" title="File:Backhanded compliment icon1.png" />
    </allimages>
  </query>
</api>