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="20140120104334" timestamp="2014-01-20T10:43:34Z" ns="0" title="Computer Vision and Machine Learning Laboratory" />
        <page value="20140121054048" timestamp="2014-01-21T05:40:48Z" ns="0" title="Reserch" />
        <page value="20140121073229" timestamp="2014-01-21T07:32:29Z" ns="0" title="Cho. Jun Woo" />
        <page value="20140128171620" timestamp="2014-01-28T17:16:20Z" ns="0" title="Kim. Hae Sung" />
        <page value="20140303042558" timestamp="2014-03-03T04:25:58Z" ns="0" title="Choi. Baek Gyun" />
        <page value="20140520083656" timestamp="2014-05-20T08:36:56Z" ns="0" title="Kim. Sin Gon" />
        <page value="20150401160756" timestamp="2015-04-01T16:07:56Z" ns="0" title="2014.06.24~2014.06.26 여름 MT" />
        <page value="20150401161506" timestamp="2015-04-01T16:15:06Z" ns="0" title="2015.02.04~2015.02.07 제주도 IPIU 학회" />
        <page value="20160929064600" timestamp="2016-09-29T06:46:00Z" ns="0" title="2016.06.22~2016.06.27 제주도 여름 MT" />
        <page value="20161003105121" timestamp="2016-10-03T10:51:21Z" ns="0" title="Kim. Shin Gon" />
      </results>
    </querypage>
  </query>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
</api>