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"?>
    <alllinks galcontinue="Bond_of_Union|1887" />
      <page pageid="1969" ns="0" title="Depth and Perspective" />
      <page pageid="2006" ns="0" title="Depth and Perspective Exercises" />
      <page pageid="2092" ns="0" title="Impossible Exploration" />
      <page pageid="2121" ns="100" title="Instructor:Depth and Perspective Exercises Solutions" />
      <page pageid="2165" ns="0" title="Flor de Pascua" />
      <page pageid="2188" ns="0" title="Impossible Exploration II" />
      <page pageid="2379" ns="1" title="Talk:Polygon Exercises" />
      <page pageid="3053" ns="0" title="Man with Cuboid" />
      <page pageid="3709" ns="102" title="Course:SLUMA Questions" />