GeoJSON files of all Capitals and Countries of the world.
I could'n find any valid geoJSON files of the world capitals or the shapes of the world countries, so I converted the data I found into two valid geoJSON files.
This file contains all capitals of the world with coordinates type 'Point'.
This file contains the shapes of all countries of the world as type 'Polygon' or 'MultiPolygon'.
I took the original data from:
Geojson World Capitals: http://www.geognos.com/geo/en/world-countries-API.html
Geojson Polygons World Countries: https://github.com/mledoze/countries/tree/master/data