D',
                'marker-color': '#f00',
                'marker-size': 'large',
                url: 'http://en.wikipedia.org/wiki/Baltimore'
            },
            geometry: {
                type: 'Point',
                coordinates: [-76.60767, 39.28755]
            }
        }]
    };

    // Pass features and a custom factory function to the map
    map.featureLayer.setGeoJSON(geoJson);
    map.featureLayer.on('click', function(e) {
        e.layer.unbindPopup();
        window.open(e.layer.fe