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HTML is good for debugging, but is unsuitable for application use.
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To see the non HTML representation of the XML format, set format=xml.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20110512104543" timestamp="2011-05-12T10:45:43Z" ns="0" title="Κρατήσεις Αιθουσών - Πρόγραμμα Μαθημάτων" />
        <page value="20110512112248" timestamp="2011-05-12T11:22:48Z" ns="0" title="Active Directory Attributes - Eduperson" />
        <page value="20110513111148" timestamp="2011-05-13T11:11:48Z" ns="0" title="Helpdesk: Ωρες Λειτουργίας &amp; Επικοινωνία" />
        <page value="20110516100644" timestamp="2011-05-16T10:06:44Z" ns="0" title="Active Directory" />
        <page value="20130216101953" timestamp="2013-02-16T10:19:53Z" ns="0" title="Αρχική σελίδα" />
        <page value="20130217104341" timestamp="2013-02-17T10:43:41Z" ns="0" title="Ψηφιακά Πιστοποιητικά" />
        <page value="20130517204856" timestamp="2013-05-17T20:48:56Z" ns="0" title="Infoboxtest" />
        <page value="20130518141806" timestamp="2013-05-18T14:18:06Z" ns="0" title="Main Page" />
        <page value="20130528065010" timestamp="2013-05-28T06:50:10Z" ns="0" title="Case Studies: ARN-STO Rail link" />
        <page value="20130528192224" timestamp="2013-05-28T19:22:24Z" ns="0" title="Case Studies: Cargo Center Graz-Werndorf" />
      </results>
    </querypage>
  </query>
</api>