title: How to generate Folium map using GeoDataFrame?
body: <p>I have created a geoDataFrame using, and would like to create a Folium Map, plotting the population eat for each country. Do I have to create the Json file, or I can directly use the geoDataFrame file?</p>
  
  <pre><code>import folium
  import fiona
  import geopandas as gpd
  
  world = fiona.open(gpd.datasets.get_path('naturalearth_lowres'))
  world = gpd.GeoDataFrame.from_features([feature for feature in world])
  world = world[(world.pop_est &gt; 0) &amp; (world.name != "Antarctica")]
  </code></pre>
  
  <p>I used folium.map and geojson function, but it failed to create correct JSON files.
  Thanks for the help!</p>