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>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20150321042351" timestamp="2015-03-21T04:23:51Z" ns="0" title="Balanced Melee Mapmaking" />
        <page value="20150321042418" timestamp="2015-03-21T04:24:18Z" ns="0" title="Crash List" />
        <page value="20150321042421" timestamp="2015-03-21T04:24:21Z" ns="0" title="Doodad" />
        <page value="20150321042425" timestamp="2015-03-21T04:24:25Z" ns="0" title="Disabled Sprite Effects" />
        <page value="20150321042438" timestamp="2015-03-21T04:24:38Z" ns="0" title="Fog of war" />
        <page value="20150321042443" timestamp="2015-03-21T04:24:43Z" ns="0" title="Game" />
        <page value="20150321042536" timestamp="2015-03-21T04:25:36Z" ns="0" title="Map Layer" />
        <page value="20150321042540" timestamp="2015-03-21T04:25:40Z" ns="0" title="Map Limits" />
        <page value="20150321042547" timestamp="2015-03-21T04:25:47Z" ns="0" title="Map Max" />
        <page value="20150321042554" timestamp="2015-03-21T04:25:54Z" ns="0" title="Mission Briefings" />
      </results>
    </querypage>
  </query>
</api>