title: Display multiple google chart regions in the same map
body: <p>I am creating a Google Geo Chart that includes cities in the US, South Korea, Taiwan, China, and India. If I use <code>regions: 'world'</code> tshe map will be too big and the city bubbles will be barely visible. I am using the following options:</p>
  
  <pre><code>var options = {
    region: 'world',
    displayMode: 'markers',
    resolution: 'provinces'
  }
  </code></pre>
  
  <p><strong>Would it be possible to create a map with two or more regions?</strong> </p>
  
  <p>For example, US and Asia. I am thinking about setting the regions using something like the following:</p>
  
  <pre><code>var options = {
    region: '019','142',
    displayMode: 'markers',
    resolution: 'provinces'
  }
  </code></pre>