react.leaflet.example.geojson.code

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [-77.0368739, 38.907192]
      },
      "properties": {
        "popupContent": "Washington, D.C. is the capital city and federal district of the United States."
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [-76.61219, 39.290386]
      },
      "properties": {
        "popupContent": "Maryland Institute College of Art is a leader in the world of visual arts featuring undergraduate, graduate, and certificate programs.",
        "icon": {
          "iconUrl": "https://img.icons8.com/nolan/256/university.png",
          "iconSize": [30,30],
          "iconAnchor": [20, 0]
        }
      }
    }
  ]
}