Upgrading from:

Miscellaneous`WorldData`

All the functionality in Miscellaneous`WorldData` is now available in the built-in Mathematica kernel function CountryData.

CountryData gives the {latitude,longitude} coordinates in degrees:

Version 5.2 << Miscellaneous`WorldData`;
WorldData["Monaco"]

Miscellaneous`WorldData` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6797.