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>
    <linkshere lhcontinue="29" />
  </query-continue>
  <query>
    <pages>
      <page pageid="3" ns="0" title="Main Page">
        <linkshere>
          <lh pageid="2" ns="0" title="Lew Wallace High School History Wiki (not -pedia)" />
          <lh pageid="18" ns="0" title="Cornerstone Ceremonies" />
          <lh pageid="19" ns="0" title="Memories of &quot;the Portables&quot;" />
          <lh pageid="20" ns="0" title="Images of the Renovation" />
          <lh pageid="21" ns="0" title="Christ Christoff" />
          <lh pageid="22" ns="0" title="Class of 1932" />
          <lh pageid="23" ns="0" title="Library Images" />
          <lh pageid="24" ns="0" title="Class of 1932 Reunion" />
          <lh pageid="25" ns="0" title="2014 Building Tour" />
          <lh pageid="27" ns="0" title="Donald Torreson" />
        </linkshere>
      </page>
    </pages>
  </query>
</api>