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="20100406194024" timestamp="2010-04-06T19:40:24Z" ns="0" title="Ascolta la Felúdin" />
        <page value="20100406194547" timestamp="2010-04-06T19:45:47Z" ns="0" title="Ascolta la Felúndin" />
        <page value="20100412190606" timestamp="2010-04-12T19:06:06Z" ns="0" title="Protezione iniziale" />
        <page value="20100412191922" timestamp="2010-04-12T19:19:22Z" ns="0" title="Ascolta i Felúndin" />
        <page value="20100412193039" timestamp="2010-04-12T19:30:39Z" ns="0" title="Rune" />
        <page value="20100413094335" timestamp="2010-04-13T09:43:35Z" ns="0" title="Mago" />
        <page value="20100413102415" timestamp="2010-04-13T10:24:15Z" ns="0" title="Orientamento" />
        <page value="20100413102912" timestamp="2010-04-13T10:29:12Z" ns="0" title="Pacchetto Luce Items" />
        <page value="20100414085247" timestamp="2010-04-14T08:52:47Z" ns="0" title="Potere" />
        <page value="20100416100636" timestamp="2010-04-16T10:06:36Z" ns="0" title="Profilo" />
      </results>
    </querypage>
  </query>
</api>