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>
    <allimages>
      <img name="Belle2-logo-trans.png" timestamp="2018-02-27T15:07:14Z" url="https://www.phy.bnl.gov/edg/wiki/images/8/8c/Belle2-logo-trans.png" descriptionurl="https://www.phy.bnl.gov/edg/w/File:Belle2-logo-trans.png" ns="6" title="File:Belle2-logo-trans.png" />
      <img name="Belle2-logo.png" timestamp="2018-02-27T16:12:15Z" url="https://www.phy.bnl.gov/edg/wiki/images/5/5a/Belle2-logo.png" descriptionurl="https://www.phy.bnl.gov/edg/w/File:Belle2-logo.png" ns="6" title="File:Belle2-logo.png" />
      <img name="BentenMenu_2017.pdf" timestamp="2017-06-14T18:10:15Z" url="https://www.phy.bnl.gov/edg/wiki/images/b/ba/BentenMenu_2017.pdf" descriptionurl="https://www.phy.bnl.gov/edg/w/File:BentenMenu_2017.pdf" ns="6" title="File:BentenMenu 2017.pdf" />
      <img name="Benten_Lunch_Menu.pdf" timestamp="2014-11-05T18:29:17Z" url="https://www.phy.bnl.gov/edg/wiki/images/a/ad/Benten_Lunch_Menu.pdf" descriptionurl="https://www.phy.bnl.gov/edg/w/File:Benten_Lunch_Menu.pdf" ns="6" title="File:Benten Lunch Menu.pdf" />
      <img name="Concur_quick_guide_April182019.pdf" timestamp="2019-06-10T21:57:16Z" url="https://www.phy.bnl.gov/edg/wiki/images/e/ed/Concur_quick_guide_April182019.pdf" descriptionurl="https://www.phy.bnl.gov/edg/w/File:Concur_quick_guide_April182019.pdf" ns="6" title="File:Concur quick guide April182019.pdf" />
      <img name="DayaBay_disappearance2.jpg" timestamp="2012-12-26T18:57:35Z" url="https://www.phy.bnl.gov/edg/wiki/images/7/7c/DayaBay_disappearance2.jpg" descriptionurl="https://www.phy.bnl.gov/edg/w/File:DayaBay_disappearance2.jpg" ns="6" title="File:DayaBay disappearance2.jpg" />
      <img name="Dyb_logo.jpg" timestamp="2012-12-25T18:00:44Z" url="https://www.phy.bnl.gov/edg/wiki/images/0/06/Dyb_logo.jpg" descriptionurl="https://www.phy.bnl.gov/edg/w/File:Dyb_logo.jpg" ns="6" title="File:Dyb logo.jpg" />
      <img name="E787event.jpg" timestamp="2014-10-01T18:06:04Z" url="https://www.phy.bnl.gov/edg/wiki/images/8/8e/E787event.jpg" descriptionurl="https://www.phy.bnl.gov/edg/w/File:E787event.jpg" ns="6" title="File:E787event.jpg" />
      <img name="ER_Receipts_Form.xlsx" timestamp="2013-10-18T13:54:02Z" url="https://www.phy.bnl.gov/edg/wiki/images/a/af/ER_Receipts_Form.xlsx" descriptionurl="https://www.phy.bnl.gov/edg/w/File:ER_Receipts_Form.xlsx" ns="6" title="File:ER Receipts Form.xlsx" />
      <img name="Etw.JPG" timestamp="2013-01-02T23:08:16Z" url="https://www.phy.bnl.gov/edg/wiki/images/2/22/Etw.JPG" descriptionurl="https://www.phy.bnl.gov/edg/w/File:Etw.JPG" ns="6" title="File:Etw.JPG" />
    </allimages>
  </query>
  <query-continue>
    <allimages aicontinue="Icarus_logo.jpg" />
  </query-continue>
</api>