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="Hq_raid_scenic_pic.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="BDM.jpg" timestamp="2015-04-02T11:31:42Z" url="http://aao25.com/wiki/images/b/b5/BDM.jpg" descriptionurl="http://aao25.com/wiki/index.php?title=File:BDM.jpg" ns="6" title="File:BDM.jpg" />
      <img name="Border_scenic_pic.png" timestamp="2015-03-29T19:25:20Z" url="http://aao25.com/wiki/images/7/7d/Border_scenic_pic.png" descriptionurl="http://aao25.com/wiki/index.php?title=File:Border_scenic_pic.png" ns="6" title="File:Border scenic pic.png" />
      <img name="Breacher.jpg" timestamp="2015-04-02T11:40:02Z" url="http://aao25.com/wiki/images/1/15/Breacher.jpg" descriptionurl="http://aao25.com/wiki/index.php?title=File:Breacher.jpg" ns="6" title="File:Breacher.jpg" />
      <img name="Bridge_scenic_pic.png" timestamp="2015-03-29T19:26:44Z" url="http://aao25.com/wiki/images/2/2d/Bridge_scenic_pic.png" descriptionurl="http://aao25.com/wiki/index.php?title=File:Bridge_scenic_pic.png" ns="6" title="File:Bridge scenic pic.png" />
      <img name="Bridge_se_scenic_pic.png" timestamp="2015-03-29T19:31:09Z" url="http://aao25.com/wiki/images/8/82/Bridge_se_scenic_pic.png" descriptionurl="http://aao25.com/wiki/index.php?title=File:Bridge_se_scenic_pic.png" ns="6" title="File:Bridge se scenic pic.png" />
      <img name="Collapsed_tunnel_scenic_pic.png" timestamp="2015-03-29T19:35:48Z" url="http://aao25.com/wiki/images/f/ff/Collapsed_tunnel_scenic_pic.png" descriptionurl="http://aao25.com/wiki/index.php?title=File:Collapsed_tunnel_scenic_pic.png" ns="6" title="File:Collapsed tunnel scenic pic.png" />
      <img name="Dusk_scenic_pic.png" timestamp="2015-03-29T19:41:05Z" url="http://aao25.com/wiki/images/8/82/Dusk_scenic_pic.png" descriptionurl="http://aao25.com/wiki/index.php?title=File:Dusk_scenic_pic.png" ns="6" title="File:Dusk scenic pic.png" />
      <img name="Flash.jpg" timestamp="2015-04-02T11:38:57Z" url="http://aao25.com/wiki/images/2/24/Flash.jpg" descriptionurl="http://aao25.com/wiki/index.php?title=File:Flash.jpg" ns="6" title="File:Flash.jpg" />
      <img name="Fls_scenic_pic.png" timestamp="2015-03-29T19:38:25Z" url="http://aao25.com/wiki/images/2/2d/Fls_scenic_pic.png" descriptionurl="http://aao25.com/wiki/index.php?title=File:Fls_scenic_pic.png" ns="6" title="File:Fls scenic pic.png" />
      <img name="Gp.jpg" timestamp="2015-04-02T13:44:19Z" url="http://aao25.com/wiki/images/4/47/Gp.jpg" descriptionurl="http://aao25.com/wiki/index.php?title=File:Gp.jpg" ns="6" title="File:Gp.jpg" />
    </allimages>
  </query>
</api>