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>
    <querypage name="Ancientpages">
      <results>
        <page value="20080817233217" timestamp="2008-08-17T23:32:17Z" ns="0" title="Template testing sandbox" />
        <page value="20080817235453" timestamp="2008-08-17T23:54:53Z" ns="0" title="Test page two" />
        <page value="20091017173423" timestamp="2009-10-17T17:34:23Z" ns="0" title="Testbot" />
        <page value="20091202222321" timestamp="2009-12-02T22:23:21Z" ns="0" title="Realism" />
        <page value="20091203041859" timestamp="2009-12-03T04:18:59Z" ns="0" title="Fighting fair" />
        <page value="20100217221609" timestamp="2010-02-17T22:16:09Z" ns="0" title="Neutrogic High Zone" />
        <page value="20100223194730" timestamp="2010-02-23T19:47:30Z" ns="0" title="Jet the Hawk" />
        <page value="20100223194735" timestamp="2010-02-23T19:47:35Z" ns="0" title="Wave the Swallow" />
        <page value="20100223194742" timestamp="2010-02-23T19:47:42Z" ns="0" title="Storm the Albatross" />
        <page value="20100223194750" timestamp="2010-02-23T19:47:50Z" ns="0" title="Silver the Hedgehog" />
      </results>
    </querypage>
  </query>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
</api>