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="20130411194149" timestamp="2013-04-11T19:41:49Z" ns="0" title="Radijo imtuvas" />
        <page value="20130411195715" timestamp="2013-04-11T19:57:15Z" ns="0" title="Tiesioginio stiprinimo radijo imtuvas" />
        <page value="20130411195729" timestamp="2013-04-11T19:57:29Z" ns="0" title="Refleksinis radijo imtuvas" />
        <page value="20130411200350" timestamp="2013-04-11T20:03:50Z" ns="0" title="Vacys Reimeris" />
        <page value="20130411200359" timestamp="2013-04-11T20:03:59Z" ns="0" title="Mira Bordonaitė" />
        <page value="20130412154703" timestamp="2013-04-12T15:47:03Z" ns="0" title="Jonas Januitis" />
        <page value="20130412212019" timestamp="2013-04-12T21:20:19Z" ns="0" title="Tėvynės balsas" />
        <page value="20130417173943" timestamp="2013-04-17T17:39:43Z" ns="0" title="Valstybės radiofonas" />
        <page value="20130417201949" timestamp="2013-04-17T20:19:49Z" ns="0" title="Stanislovas Blinstrubas" />
        <page value="20130418204223" timestamp="2013-04-18T20:42:23Z" ns="0" title="Klaipėdos radiofonas" />
      </results>
    </querypage>
  </query>
</api>