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="20150406071702" timestamp="2015-04-06T07:17:02Z" ns="0" title="Центр Генетики" />
        <page value="20150415104730" timestamp="2015-04-15T10:47:30Z" ns="0" title="Грэмми" />
        <page value="20150427175828" timestamp="2015-04-27T17:58:28Z" ns="0" title="Магазин" />
        <page value="20150428053634" timestamp="2015-04-28T05:36:34Z" ns="0" title="Тренировочный зал" />
        <page value="20150904083741" timestamp="2015-09-04T08:37:41Z" ns="0" title="Задания" />
        <page value="20160708095937" timestamp="2016-07-08T09:59:37Z" ns="0" title="Крионит" />
        <page value="20170811100158" timestamp="2017-08-11T10:01:58Z" ns="0" title="Основы" />
        <page value="20180217134435" timestamp="2018-02-17T13:44:35Z" ns="0" title="Руководства" />
        <page value="20190102192813" timestamp="2019-01-02T19:28:13Z" ns="0" title="Амулеты" />
        <page value="20190109203559" timestamp="2019-01-09T20:35:59Z" ns="0" title="Монастырь Шаолинь" />
      </results>
    </querypage>
  </query>
</api>