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="20140127114134" timestamp="2014-01-27T11:41:34Z" ns="0" title="画像出典" />
        <page value="20140202075950" timestamp="2014-02-02T07:59:50Z" ns="0" title="アテフ冠" />
        <page value="20140207220852" timestamp="2014-02-07T22:08:52Z" ns="0" title="アダパ" />
        <page value="20140207221448" timestamp="2014-02-07T22:14:48Z" ns="0" title="エラ" />
        <page value="20140323115930" timestamp="2014-03-23T11:59:30Z" ns="0" title="エトルリア神話" />
        <page value="20140326015609" timestamp="2014-03-26T01:56:09Z" ns="0" title="コーカサス神話" />
        <page value="20140330055853" timestamp="2014-03-30T05:58:53Z" ns="0" title="ペルシャ神話" />
        <page value="20140401013953" timestamp="2014-04-01T01:39:53Z" ns="0" title="トレプシュ" />
        <page value="20140418072216" timestamp="2014-04-18T07:22:16Z" ns="0" title="クルダレゴン" />
        <page value="20140418072459" timestamp="2014-04-18T07:24:59Z" ns="0" title="ヘルモポリス創世神話" />
      </results>
    </querypage>
  </query>
</api>