From the old Equi4 Software site wiki
There's an application by Richard Suchenwirth called TclWorld [1] with a nice demo of drawing a world map and letting you zoom around there and view country/city/flag details. Here's a screenshot (of an early version, running on WinCE):
How to get TclWorld running on Windows
That's it, you are looking at TclWorld... an application written in Tcl/Tk and packaged as a Starkit.
See also: Where to find starkits - How to use a starkit - How to assemble a starkit - Getting started with Starkits on Unix