A better source of examples is here where you can see the latest and greatest: https://ajpmaclean.github.io/web-test/site/, I am working on the new site and this is the web version here so it is being updated on a daily basis. The future site will be anounced here when I have finished the majority of updates/improvements. Probably in a few weeks.
The original site is here: https://lorensen.github.io/VTKExamples/site/, however is is no longer being maintained.