title: Drawing districts of large cities using google maps or openstreetmaps APIs
body: <p>Is it feasible to build a map using the google maps API or Openstreetmaps which has a superimposed layer that displays districts of a city? For example, Manhattan is a region within New York City, and I would like to be able to plot the boundaries of this region, and any neighboring regions on a map. </p>
  
  <p><img src="https://i.stack.imgur.com/1uiCQ.png" alt="New York City District map"></p>
  
  <p>Where would one obtain the data for these regions (worldwide)?</p>