1Zeitpyramide

There is an ongoing public art project in Germany called the Time Pyramid (Zeitpyramide). It is supposed to consist of 120 concrete blocks, but only one block is placed every 10 years. So far, 3 blocks have been placed. It is scheduled to be completed in the year 3183.
2. Domesticated and wild dogs scavenge human remains in different ways: pet dogs tend to eat their owners' faces, while wild dogs prefer to eat the nutrient rich organs located in the abdomen.
3. In 1958, Canada set off one of the largest intentional non-nuclear explosions in history to remove a rock in the middle of a shipping lane between Vancouver Island and the mainland. A tunnel half a mile long was dug out under the ocean and filled with 2.75 million pounds of explosive.
4. Walt Disney was a confidential informant for the FBI for the last 26 years of his life.
5. Fire fighters and anyone else who inhaled the toxic air from ground zero in the aftermath of 9/11 essentially lost 12 years of lung function.
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6Marriage

The average time between a girl's first period and when she got married was 5 years in the 19th century, but in the 21st century it has grown to 15 years.
7. Grand Central Terminal in New York City is radioactive due to the massive amount of granite used in its construction. Full-time workers at the terminus are exposed to more radiation than what is permitted for nuclear plant workers.
8. The Apollo 11 crew Neil Armstrong, Buzz Aldrin, Michael Collins didn't add their names to the mission patch because they wanted the patch to represent everyone involved with the mission.
9. In 1945, the nurse being kissed by the sailor in the iconic Victory over Japan photo went unidentified for 20 years, when she self-identified and explained she "had stepped outside to see what the commotion was when I suddenly found myself in a sailor's embrace." The two had never met, and the photo was caught by luck.
10. The word 'avocado' comes from an Aztec word that means testicle.
11Bookkeeping

Bookkeeper (or bookkeeping) is the only English word with 3 consecutive double letters.
12. Mirror image twins are perfect reflections of each other. One is right-handed, while the other is left-handed. They have birthmarks exactly on opposite sides of their body and have hair whorls that swirl in opposite directions.
13. American actor George Burns bought new Cadillacs every year and drove until the age of 93, when he stopped due to becoming so short that he couldn't see over the steering wheel.
14. The average Mexican citizen works an average of 2,255 hours a year, while the average Danish citizen works only 1,410 hours per year.
15. To pep herself up, Queen Victoria was addicted to cocaine infused chewing gum.
16Malaysian Exploding Ant

When the Malaysian Exploding Ant’s head explodes during its suicide attack, it spreads a poisonous and corrosive glue like liquid that entangles and immobilizes any nearby victims.
17. Irish monks invented spacing between written words.
18. Leonardo da Vinci's anatomical studies were completely illegal. During his time, dissection was completely outlawed unless one was a physician, which da Vinci was not.
19. Black Bart was an outlaw of the 1800s who successfully robbed 28 stagecoaches and left this poem in one of them: “I’ve labored long and hard for bread / For honor, and for riches / But on my corns too long you've tread / You fine-haired sons of b*tches.”
20. During the Winter War, the Finns used mannequins posing as officers to draw fire from Soviet snipers. The Finns would then return fire with the Lahti L-39, a 20 mm anti-tank rifle.
21Helen Keller

Helen Keller wrote in favor of refusing life-saving medical procedures to infants with severe mental impairments or physical deformities, stating that their lives were not worthwhile and they would likely become criminals.
22. There was a pigment used in early days of wallpaper making called Scheele's Green. If the wallpaper got moldy or damp, it released poisonous arsenic into the air. It is speculated that this was the cause of Napoleon's death as green was his favorite color and his walls were lined with green wallpaper.
23. Playing "pink noise" - the sound of uniform static - while sleeping has been found to improve sleep quality and also help memory.
24. Astronaut Christa McAuliffe was gifted with a $1 million life insurance policy a week before the Challenger disaster in honor of her being the first teacher in space.
25. Sideburns get their name from Ambrose Burnside, a former Union general and U.S. senator, who had extravagant whiskers.


