The mental_floss History of the United States
The mental_floss History of the World
mental_floss presents: Be Amazing
mental_floss presents: Condensed Knowledge
mental_floss presents: Forbidden Knowledge
mental_floss presents: In the Beginning
mental_floss: Cocktail Party Cheat Sheets
mental_floss: The Genius Instruction Manual
mental_floss: Scatterbrained
mental_floss: What’s the Difference?