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>
    <allpages apcontinue="Barlows" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="722" ns="0" title="BESTMART + GLOBALOUTLET TRACKING" />
      <p pageid="305" ns="0" title="BG-A003: Folding Bed with Adjustable Headrest" />
      <p pageid="844" ns="0" title="BPAY/BANK REFUND - CrazySales" />
      <p pageid="4699" ns="0" title="Back When I Landed In London From Jamaica With A Small Bag. The Air Was Sharp" />
      <p pageid="4695" ns="0" title="Back When I Landed In London From Kingston With A Small Bag. The Air Was Sharp" />
      <p pageid="4694" ns="0" title="Back When I Landed In London From The Caribbean With Just A Suitcase. The Air Was Sharp" />
      <p pageid="4402" ns="0" title="Back When I Landed In London From The Islands With A Small Bag. The Air Was Sharp" />
      <p pageid="1562" ns="0" title="Bank Deposit (Crazysales)" />
      <p pageid="1561" ns="0" title="Bank Deposit (eBay)" />
      <p pageid="2965" ns="0" title="Bar Code" />
    </allpages>
  </query>
</api>