For those interested in astronomy, you'll get a kick out of this map of the universe if you haven't already seen it.
Logarithmic Maps of the Universe
http://www.astro.princeton.edu/~mjuric/universe/
Puts universal distances into perspective (if you have a good imagination. These numbers are BIG) 
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let the wise listen and add to their learning,
and let the discerning get guidance- Proverbs 1:5
