public List <GeoCountryInfo> ListCountries()
 {
     return(GeoCountryInfo.ListAsDistinct(ListPlaces().Select(x => x.Country).Distinct()));
 }
 /// <summary>
 /// Get a distinct list of countries in use
 /// </summary>
 public List <GeoCountryInfo> ListCountries()
 {
     return(GeoCountryInfo.ListAsDistinct(_cache.All.Select(x => x.Country.ISO2).Distinct()));
 }