PHP XML Not loading using XPath

[KZEdwin]

I'm loading a XML file as follows:\[code\]$places=simplexml_load_file("http://www.43places.com/service/search_places?api_key=1234&q=america");$allPlaces=$places->xpath('//place');foreach($allPlaces as $title){ echo "a";}\[/code\]Simply to test it, the file is correctly loading, you can see the XML file here. Any idea why it is not looping??