Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
"Big Ben" in London isn't a tower, the bell inside the tower is called "Big Ben", the tower itself is called "The Elizabeth Tower".
18
A man earned 4 million airline miles for free without breaking any laws by using his credit card to purchase free-delivery $1 coins from the U.S. mint.
11
Déjà vu occurs when your brain tries to apply a memory of a past situation to your current one, fails, and makes you feel like it's happened.
12
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
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