1Mount Rushmore

There is a secret room behind Mount Rushmore designed to store US treasured documents.
2. Guatemalans were deliberately infected with STDs between 1945 & 1956 through US government programme. They were kept secret until discovered in 2010 by a college professor. The programme published no findings, did not inform those who were infected nor did it provide them with follow-up medical care.
3. A 16-year-old cancer patient Kevin Cordasco was offered to read the final script of Breaking Bad but turned it down, thinking he wouldn't be able to keep it secret. He died before the finale aired.
4. The Original Illuminati was an Enlightenment-era secret society in Bavaria created on May 1st, 1776. The society's goals were to oppose superstition, prejudice, religious influence over public life and abuses of state power, and to support women's education and gender equality.
5. Red cell was a team of ex-navy seals tasked to take over military bases, kidnap and take hostage VIPs, steal top secret info, and even infiltrate Air Force One in order to expose security flaws.
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6Guantanamo Bay

Sean Baker, a Military Policeman at Guantanamo Bay, was ordered to impersonate a prisoner in a secret training mission for US Soldiers to practice extracting uncooperative inmates from their cells. He was beaten so hard he suffered from major seizures caused by traumatic brain injury.
7. When Richard Nixon's secret "enemy list" was leaked to the media, journalist Daniel Schorr read the names on live TV. Not having read it before going on air, he was surprised to see his own name as number 17.
8. Thomas Edison taught his second wife (Mina Miller) Morse code to tap out messages on his arm so that they could communicate in secret in front of her parents.
9. In 1979, two men arrived at a sheriff's office claiming to have been abducted by aliens with lobster- claw hands. Left alone in a room with a secret recording device to expose their lie, they instead continued to talk in "terribly distressed" voices about the abduction.
10. In 1955, Sears published a phone number that kids could use to "call Santa". However, due to a misprint, the number Sears printed redirected to NORAD's top secret emergency line. Rather than having the ad pulled, NORAD decided to "track" Santa's progress, which they continue to do to this day.
11Modern color printers

All modern color printers print a secret, nearly invisible code onto every page to allow governments to track the serial number and timestamps.
12. When an architecture student alerted engineers that an NYC skyscraper might collapse in an upcoming storm (Hurricane Ella), the city kept it secret then reinforced the building overnight (while police developed a ten-block evacuation plan).
13. An employee of the Kodak Camera Company discovered in the 40s that there must have been some sort of nuclear test (Trinity test) on United States mainland. Realizing the importance of his discovery, he kept his findings a secret until 1949.
14. In 2000, Over 1000 priceless books disappeared from a mountaintop abbey in France to the confusion of the monks and the local police, despite reinforcing the library's doors and changing its locks. Turned out the culprit was using a long-forgotten secret passageway found in the public archives.
15. Beneath the streets of Los Angeles is a complex network of pedestrian tunnels that stretch several blocks. They've been used for secret transportation of mobsters, murderers and more than a billion dollars in cash; designated as fallout shelters and homeless shelters and used as backdrops for movies.
16Powerpuff Girls

The Powerpuff Girls were originally called the "Whoopass Girls" by their creator who did the pilot as a college project. The "secret ingredient" in their creation was accidentally spilling a can of Whoopass into the pot.
17. Before his death, Ed Sullivan believed he was suffering complications from his long-standing battle with ulcers. He did not know that he had been diagnosed with advanced esophageal cancer the month before, a diagnosis his family and doctors had kept secret from him.
18. The Rothschilds had such an efficient system of couriers that they knew Napoleon had lost at Waterloo a day before the government did. Nathan Rothschild kept it secret and immediately bought up the government bond market. He then sold the bonds for an enormous 40% profit two years later.
19. Freddie Mercury bequeathed the vast majority of his fortune to his ex-girlfriend (Mary Austin), and also entrusted her to ensure that the burial place of his ashes would remain secret.
20. South Korea, despite having completed the transition to digital broadcast (ATSC) in 2012, still maintains analog broadcast near its borders for North Koreans watching South Korean TV in secret.
21Northern Idaho

The US Navy's most secretive naval base is located in a remote lake in northern Idaho. This base is believed to be used to develop stealth submarine technology and some locals believe that there is an underground waterway to the Pacific ocean used for top-secret deployment
22. The deepest London Underground station (North End tube station), 221 feet underground, was never completed and was used to store secret archives during World War 2.
23. The United Kingdom still retains 18 Queen's Messengers, who hand deliver secret documents to British embassies worldwide, traveling undercover in business class. The diplomatic package has its own "passport", as though it's a human being, and is exempt from being searched or x-rayed by airport security.
24. While at the toilet, president Carter hit a secret "panic button" thinking it was a flush toilet button and Secret Service responded by bursting into the room while the president was still zipping up his trousers.
25. The 1997 video game "The Lost World: Jurassic Park", had a secret ending where Jeff Goldblum implored the gamer to stop playing computer games, go outside, talk to opposite sex and live their lives.




