E.g., 

http://gbif.github.io/gbif-api/apidocs/org/gbif/api/vocabulary/OccurrenceIssue.html
http://gbif.github.io/gbif-api/apidocs/org/gbif/api/vocabulary/Continent.html
http://gbif.github.io/gbif-api/apidocs/org/gbif/api/vocabulary/BasisOfRecord.html

Scott