1. The Scale of the Universe 2" by Cary and Michael Huang. Hat tip to Katie Benvenuti.
This is first on the list because it's the one you probably haven't tried yet. Go ahead and play with it. I'm pretty sure you'll like it!
2. Powers of Ten by Charles and Ray Eames.
3. Cosmic View: The Universe in 40 Jumps by Kees Boeke.
4. Cosmic Voyage by IMAX Film Projects.
5. The Simpson's Powers of Ten Tribute courtesy of Dan Burns.