My First Trainz Set is a nice game that provides you with a model railroad inside a fully 3D app. The program lets you build tracks and drive trains in your own make-believe world. You can build winding tracks up, around and through real life rooms. You can even jump inside the cab of the realistic steam and diesel locomotives.
SkyChart III is a planetarium and telescope control program that shows the sky from any location, past or future, on Earth or beyond.
