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>
    <allredirects garcontinue="BLOG_-_Leben_als_frisch_erwachte_(SWR)|30453" />
  </query-continue>
  <query>
    <pages>
      <page pageid="11379" ns="0" title="Babe the Ox" />
      <page pageid="14376" ns="0" title="British Aerospace" />
      <page pageid="30120" ns="0" title="Badische Anilin- und Soda-Fabrik" />
      <page pageid="33997" ns="0" title="Bavaria Trid" />
      <page pageid="35570" ns="0" title="BTO" />
      <page pageid="43650" ns="0" title="Barnaba$h" />
      <page pageid="46169" ns="0" title="B1 Live Newsfeeds" />
      <page pageid="46622" ns="0" title="!B - Dein Newsfeed für Berlin" />
      <page pageid="46897" ns="0" title="B! - Dein Newsfeed für Berlin" />
      <page pageid="47985" ns="0" title="B!-Life Newsfeed" />
    </pages>
  </query>
</api>