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="20160407191800" timestamp="2016-04-07T19:18:00Z" ns="0" title="Logomarcas TerraAmazon" />
        <page value="20160411131908" timestamp="2016-04-11T13:19:08Z" ns="0" title="Manual de Instalação" />
        <page value="20160411132915" timestamp="2016-04-11T13:29:15Z" ns="0" title="Help da Aplicação" />
        <page value="20161130163336" timestamp="2016-11-30T16:33:36Z" ns="0" title="Time TerraAmazon" />
        <page value="20161207184354" timestamp="2016-12-07T18:43:54Z" ns="0" title="Help da Aplicação 5.1" />
        <page value="20161207184509" timestamp="2016-12-07T18:45:09Z" ns="0" title="Manual de Instalação 5.1" />
        <page value="20161207184650" timestamp="2016-12-07T18:46:50Z" ns="0" title="Help da Aplicação 5.2" />
        <page value="20161207184809" timestamp="2016-12-07T18:48:09Z" ns="0" title="Manual de Instalação 5.2" />
        <page value="20161220201551" timestamp="2016-12-20T20:15:51Z" ns="0" title="The-best-way-to-Hire-the-Top-SEO-Business-b" />
        <page value="20170116164203" timestamp="2017-01-16T16:42:03Z" ns="0" title="Instruções para compilar" />
      </results>
    </querypage>
  </query>
</api>