The DataSets package features two built-in data sets: Country and GeoNames.

The built-in data sets are accessed by creating a Reference to either data set.

The GeoNames data set contains geographic information on all of the countries of the world.

The data in the GeoNames data set is taken from www.geonames.org, a worldwide geographical database with a search function, browsable maps, and downloadable data files.

The first column in the GeoNames data set is always the GeoNamesid column.

with(DataSets):

ref := Reference("Builtin", "Geonames");

$\mathrm{ref}≔\left[\right]$

DocumentTools:-Tabulate(Matrix(2, 5, [op(sort(GetHeaders(ref))),""])):

place := ref[[Country = "Sweden", Name = "Uppsala"]][2];

$\mathrm{place}≔\left[\right]$

GetData(place[..,Population]);

Display(Builtin:-WorldMap(place));