These Mindbending Optical Illusions Will Break Your Brain

Hermann Grid Illusion

The Hermann grid illusion is one of the most common types of illusions, characterized by “ghostlike” gray blobs perceived between intersections of a white or grid on a black background. The gray blobs disappear if you look directly at the intersection.

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The More You Know

  • It's a tradition in Ireland that if you donated a pint of blood, they give you a pint of Guinness to replace the iron.
  • For 67 consecutive years, Mary was America's most popular female baby name. Linda broke the streak in 1947.
  • A man sued Pepsi claiming he found a mouse in his Mountain Dew. Pepsi attorneys stated that Mountain Dew will dissolve a mouse in 30 days, and showed his can was purchased 74 days after being manufactured.
  • You spend about 10% of the time you're awake blinking.
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