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="Barbarian_Lord&#039;s_Axe_of_Ferocity.gif" />
  </query-continue>
  <query>
    <allimages>
      <img name="Badge_of_Courage_artifact.gif" timestamp="2018-05-16T22:38:28Z" url="http://heroes.thelazy.net/wiki/images/2/2c/Badge_of_Courage_artifact.gif" descriptionurl="http://heroes.thelazy.net/wiki/File:Badge_of_Courage_artifact.gif" ns="6" title="File:Badge of Courage artifact.gif" />
      <img name="Ballista.jpg" timestamp="2008-05-04T11:52:17Z" url="http://heroes.thelazy.net/wiki/images/e/e3/Ballista.jpg" descriptionurl="http://heroes.thelazy.net/wiki/File:Ballista.jpg" ns="6" title="File:Ballista.jpg" />
      <img name="Ballista.png" timestamp="2014-03-19T10:06:58Z" url="http://heroes.thelazy.net/wiki/images/d/d5/Ballista.png" descriptionurl="http://heroes.thelazy.net/wiki/File:Ballista.png" ns="6" title="File:Ballista.png" />
      <img name="Ballista_portrait.gif" timestamp="2018-07-09T09:48:22Z" url="http://heroes.thelazy.net/wiki/images/9/9b/Ballista_portrait.gif" descriptionurl="http://heroes.thelazy.net/wiki/File:Ballista_portrait.gif" ns="6" title="File:Ballista portrait.gif" />
      <img name="Ballista_small.png" timestamp="2016-09-08T07:57:56Z" url="http://heroes.thelazy.net/wiki/images/1/1e/Ballista_small.png" descriptionurl="http://heroes.thelazy.net/wiki/File:Ballista_small.png" ns="6" title="File:Ballista small.png" />
      <img name="BarbarianHeroBattleMode.png" timestamp="2013-09-17T22:02:22Z" url="http://heroes.thelazy.net/wiki/images/d/da/BarbarianHeroBattleMode.png" descriptionurl="http://heroes.thelazy.net/wiki/File:BarbarianHeroBattleMode.png" ns="6" title="File:BarbarianHeroBattleMode.png" />
      <img name="Barbarian_Breakout_(Allies)_map_large.png" timestamp="2018-08-15T00:07:03Z" url="http://heroes.thelazy.net/wiki/images/0/00/Barbarian_Breakout_%28Allies%29_map_large.png" descriptionurl="http://heroes.thelazy.net/wiki/File:Barbarian_Breakout_(Allies)_map_large.png" ns="6" title="File:Barbarian Breakout (Allies) map large.png" />
      <img name="Barbarian_Breakout_(Allies)_underground_map_large.png" timestamp="2018-08-15T00:07:09Z" url="http://heroes.thelazy.net/wiki/images/5/5b/Barbarian_Breakout_%28Allies%29_underground_map_large.png" descriptionurl="http://heroes.thelazy.net/wiki/File:Barbarian_Breakout_(Allies)_underground_map_large.png" ns="6" title="File:Barbarian Breakout (Allies) underground map large.png" />
      <img name="Barbarian_Breakout_map_large.png" timestamp="2018-08-15T00:01:00Z" url="http://heroes.thelazy.net/wiki/images/8/8c/Barbarian_Breakout_map_large.png" descriptionurl="http://heroes.thelazy.net/wiki/File:Barbarian_Breakout_map_large.png" ns="6" title="File:Barbarian Breakout map large.png" />
      <img name="Barbarian_Breakout_underground_map_large.png" timestamp="2018-08-15T00:02:13Z" url="http://heroes.thelazy.net/wiki/images/1/14/Barbarian_Breakout_underground_map_large.png" descriptionurl="http://heroes.thelazy.net/wiki/File:Barbarian_Breakout_underground_map_large.png" ns="6" title="File:Barbarian Breakout underground map large.png" />
    </allimages>
  </query>
</api>