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="Bed_bug_pest_control_man.gif" />
  </query-continue>
  <query>
    <allimages>
      <img name="Back_hoe_required_to_did_out_a_septic_tank_drainfield.gif" timestamp="2010-04-13T21:09:59Z" url="https://www.newtechbio.com/wiki/images/c/c2/Back_hoe_required_to_did_out_a_septic_tank_drainfield.gif" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Back_hoe_required_to_did_out_a_septic_tank_drainfield.gif" ns="6" title="File:Back hoe required to did out a septic tank drainfield.gif" />
      <img name="Basement_mold.gif" timestamp="2010-02-26T20:19:59Z" url="https://www.newtechbio.com/wiki/images/4/41/Basement_mold.gif" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Basement_mold.gif" ns="6" title="File:Basement mold.gif" />
      <img name="Basement_water_mold.gif" timestamp="2010-02-26T20:20:39Z" url="https://www.newtechbio.com/wiki/images/2/29/Basement_water_mold.gif" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Basement_water_mold.gif" ns="6" title="File:Basement water mold.gif" />
      <img name="Basement_with_waterheater.gif" timestamp="2010-03-01T22:18:10Z" url="https://www.newtechbio.com/wiki/images/1/19/Basement_with_waterheater.gif" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Basement_with_waterheater.gif" ns="6" title="File:Basement with waterheater.gif" />
      <img name="Bathroom_mold.gif" timestamp="2010-02-26T20:20:59Z" url="https://www.newtechbio.com/wiki/images/4/44/Bathroom_mold.gif" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Bathroom_mold.gif" ns="6" title="File:Bathroom mold.gif" />
      <img name="Bed_Bug.jpg" timestamp="2010-04-07T14:30:21Z" url="https://www.newtechbio.com/wiki/images/2/28/Bed_Bug.jpg" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Bed_Bug.jpg" ns="6" title="File:Bed Bug.jpg" />
      <img name="Bed_Bug_Bites.jpg" timestamp="2010-04-07T13:19:25Z" url="https://www.newtechbio.com/wiki/images/5/53/Bed_Bug_Bites.jpg" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Bed_Bug_Bites.jpg" ns="6" title="File:Bed Bug Bites.jpg" />
      <img name="Bed_Bug_Exterminator.gif" timestamp="2010-04-07T14:29:42Z" url="https://www.newtechbio.com/wiki/images/0/0e/Bed_Bug_Exterminator.gif" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Bed_Bug_Exterminator.gif" ns="6" title="File:Bed Bug Exterminator.gif" />
      <img name="Bed_Bugs_in_Hotel_Rooms.jpg" timestamp="2010-04-08T15:02:43Z" url="https://www.newtechbio.com/wiki/images/6/69/Bed_Bugs_in_Hotel_Rooms.jpg" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Bed_Bugs_in_Hotel_Rooms.jpg" ns="6" title="File:Bed Bugs in Hotel Rooms.jpg" />
      <img name="Bed_bug_dogs.jpg" timestamp="2010-04-08T15:04:16Z" url="https://www.newtechbio.com/wiki/images/b/b3/Bed_bug_dogs.jpg" descriptionurl="https://www.newtechbio.com/wiki/index.php?title=File:Bed_bug_dogs.jpg" ns="6" title="File:Bed bug dogs.jpg" />
    </allimages>
  </query>
</api>