Mental Floss

ARCHAEOLOGY









Historian Liz Hallam Smith shows off the a-door-able opening in the wall of Westminster Hall.

Earlier this week, England’s Parliament announced that a secret door had been discovered in the walls of Westminster Hall. Inside, historians found “graffiti” left in 1851 by a bricklayer who was “fond of Ould Ale.”

Ellen Gutoskey






NASA // Public Domain

From the origins of our species to clues about the future of the universe, scientific discoveries achieved in the last decade transformed our understanding of our world. Here are 14 of the most momentous.

Jennifer Billock


Binnerstam/iStock via Getty Images

Standing tall in the Scandinavian countryside, Viking runestones bear messages from 1000 years ago in an alphabet called the Futhark. Read on for more little-known lore.

Erika Harlitz-Kern