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="20110923104523" timestamp="2011-09-23T10:45:23Z" ns="0" title="Заглавная страница" />
        <page value="20110923113620" timestamp="2011-09-23T11:36:20Z" ns="0" title="Кафедра:История" />
        <page value="20110924131054" timestamp="2011-09-24T13:10:54Z" ns="0" title="Кафедра АТ:Выпускники" />
        <page value="20110924140306" timestamp="2011-09-24T14:03:06Z" ns="0" title="Новости:Общее" />
        <page value="20110924190540" timestamp="2011-09-24T19:05:40Z" ns="0" title="Партнеры:Рекламные материалы" />
        <page value="20110925081039" timestamp="2011-09-25T08:10:39Z" ns="0" title="UNTITLED" />
        <page value="20110925142531" timestamp="2011-09-25T14:25:31Z" ns="0" title="Лента:Главное:2010-02-10" />
        <page value="20110925142711" timestamp="2011-09-25T14:27:11Z" ns="0" title="Лента:Главное:2010-02-09" />
        <page value="20110925142756" timestamp="2011-09-25T14:27:56Z" ns="0" title="Лента:Главное:2010-11-02" />
        <page value="20110925143003" timestamp="2011-09-25T14:30:03Z" ns="0" title="Лента:Главное:2010-12-01" />
      </results>
    </querypage>
  </query>
</api>