There is metadata associated with each of the timezones in tz database. This information can be retrieved using extension methods on an instance of TzDataTimezone.
You can retrieve a collection of the ISO 3166 codes for the countries covered by a timezone.
var timezoneCountryCodes = TzDataTimezone.Europe.Andorra.GetIsoCountryCodes()
Timezones defined by the tz database have a location for the principal city within the timezone after which the timezone is typically named.
var timezoneLatitude = TzDataTimezone.Australia.Brisbane.GetLatitude()
var timezoneLongitude = TzDataTimezone.Australia.Brisbane.GetLongitude()
Some timezones may have a comment with additional information about the timezone.
var timezoneComment = TzDataTimezone.Europe.Berlin.GetComment()