MNN lists

10 must-see treasures outside of Yellowstone

10 historic churches reborn as something else

8 major airports in need of a makeover

5 things you have to do differently in space

12 out-of-this-world observatories

9 scientifically proven ways to boost creativity

5 boutique fitness trends that are gaining steam

10 robots and machines from the history books

10 quotes about cats to make your heart purr

9 nests that aren't for the birds

5 tips for newbie whale watchers

9 of the smartest animals on Earth