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="20100214145417" timestamp="2010-02-14T14:54:17Z" ns="0" title="NFSU:Изменение названий каналов" />
        <page value="20100214145612" timestamp="2010-02-14T14:56:12Z" ns="0" title="ArcEmu" />
        <page value="20100214145625" timestamp="2010-02-14T14:56:25Z" ns="0" title="ArcEmu:База" />
        <page value="20100214145812" timestamp="2010-02-14T14:58:12Z" ns="0" title="D2GS:x64" />
        <page value="20100214150038" timestamp="2010-02-14T15:00:38Z" ns="0" title="PvPGN:Supported clients" />
        <page value="20100217153921" timestamp="2010-02-17T15:39:21Z" ns="0" title="PvPGN:Clantag" />
        <page value="20100322041906" timestamp="2010-03-22T04:19:06Z" ns="0" title="D2GS:Server-client" />
        <page value="20101104200537" timestamp="2010-11-04T20:05:37Z" ns="0" title="Группы консольных команд (command groups.conf) черновик" />
        <page value="20101231040734" timestamp="2010-12-31T04:07:34Z" ns="0" title="D2GS" />
        <page value="20110222161511" timestamp="2011-02-22T16:15:11Z" ns="0" title="PvPGN:FAQ" />
      </results>
    </querypage>
  </query>
</api>