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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20140112001320" timestamp="2014-01-12T00:13:20Z" ns="0" title="大塔物語19" />
        <page value="20140112130018" timestamp="2014-01-12T13:00:18Z" ns="0" title="大塔物語" />
        <page value="20140115051625" timestamp="2014-01-15T05:16:25Z" ns="0" title="大塔物語について" />
        <page value="20140119144115" timestamp="2014-01-19T14:41:15Z" ns="0" title="アダパについて" />
        <page value="20140202084112" timestamp="2014-02-02T08:41:12Z" ns="0" title="「７柱の僕」について" />
        <page value="20140216151317" timestamp="2014-02-16T15:13:17Z" ns="0" title="水の父：シュメール" />
        <page value="20140217140954" timestamp="2014-02-17T14:09:54Z" ns="0" title="言葉の系統樹" />
        <page value="20140314214419" timestamp="2014-03-14T21:44:19Z" ns="0" title="Nと月について：ヒエログリフ" />
        <page value="20140323054628" timestamp="2014-03-23T05:46:28Z" ns="0" title="失われたArk１：ヒエログリフ" />
        <page value="20140323092600" timestamp="2014-03-23T09:26:00Z" ns="0" title="印欧語における「神」の語源について" />
      </results>
    </querypage>
  </query>
</api>