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>
    <random>
      <page id="4814" ns="0" title="Brain Item Procera AVH Cognitive Enhancer Reviewsthe Most effective For Most People today" />
      <page id="3827" ns="0" title="The city boasts a truly multicultural environment and really is among the Europeans a large number of popular and also distinguished cosmopolitan" />
    </random>
  </query>
</api>