The Unicode Common Locale Data Repository it’s “the largest and most extensive repository of locale data available”, so it’s pretty much the perfect solution when you need information such as:
- Currency values, with ISO codes and visualization formats
- Dates and times patterns, including timezones
- List of “territories”, countries, continents, etc. with their corresponding languages, currencies
- Translations of all of the above
The JSON data it’s also available for use with NPM or bower.