google places autocomplete widget limited to cities

gistfile1.html

<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
    google.load("maps", "3.x", {callback: initialize, other_params:'sensor=false&libraries=places'});

    function initialize() {
        var input = document.getElementById('id_location');
        var autocomplete = new google.maps.places.Autocomplete(input, { types: ['(cities)'], region:'EU' });
        google.maps.event.addListener(autocomplete, 'place_changed', function() {
            var place = autocomplete.getPlace();
            if (!place.geometry) {
                console.log('no location');
                return;
            }
            console.log(place);
        });
    }
</script>