Programs tend to have design goals; for J3DWorkbench, it aims to be:

• A 'swiss army knife' of desktop interactive 3D.
• A 'glue' of real-time 3D

Here are great some things you can do (and being done) with J3DWorkbench:

Geography, Geolocalization, Architecture

Do a virtual fly through of your geographical area, using real arial or satellite data

How?