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>
    <allredirects garcontinue="Belzane" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Baie de Kygaïa" missing="" />
      <page ns="0" title="Bassin Minier de Valik" missing="" />
      <page pageid="2169" ns="0" title="Banque Centrale de Simland" />
      <page pageid="30629" ns="0" title="Banque des Grandes Plaines" />
      <page pageid="18559" ns="0" title="Banque simlandaise d&#039;investissement" />
      <page pageid="5852" ns="0" title="Barack Obama Avenue" />
      <page pageid="14938" ns="0" title="Barrio politico" />
      <page pageid="10924" ns="0" title="Basse Génésie" />
      <page pageid="1711" ns="0" title="Bassin de Simland" />
      <page pageid="15321" ns="0" title="Beaumont-Pankow international" />
    </pages>
  </query>
</api>