Greg Rutter's Definitive List of The 99 Things You Should Have Already Experienced On The Internet Unless You're a Loser or Old or Something. 12 Things You'll Wish You'd Never Seen Under a Microscope. If you shrink yourself down to microscopic size, you're suddenly living in a completely alien world.
Whatever you're picturing, perhaps based on your experience from Honey, I Shrunk the Kids, is way, way off. At that scale, everything is unimaginable horror. Amazing Fact Generator.