Buzz
A burial mound concealing a hidden chamber. A vast basement once feared by the U.S. as a potential target for sabotage by the Axis Powers during WWII. A warehouse filled with relics from a maritime disaster. Secret schools where both teachers and students live in constant fear. A hospital deep in the jungle of a war-ravaged country. A house constructed under the radar. A museum funded by the public, yet inaccessible to them. A covert lab where dangerous pathogens and animal experiments are conducted daily. A hidden military base discovered only after a plane’s pilot stumbled upon it. These are 10 secrets you won’t believe!
10. Hidden Burial Chamber
Archaeologists uncovered a concealed chamber beneath the Riedlingen burial mound, dating back between 620 and 450 BC. This discovery, located in the Danube Plain of southern Germany, came after the team excavated the 213-foot (65-meter) diameter mound, 20 feet (6 meters) tall, used by the elite Celts. The damp soil at the site shielded the oak structure of walls, ceiling, and floor from oxygen, preserving the wood for over 2,600 years.
Experts suggest that the double-thick ceiling was meant to deter thieves, but it failed as looters managed to break through the ceiling and entered via a small hole. The robbers took many of the chamber’s valuables, including possibly a four-wheeled chariot. Inside, the skeletal remains of two men were found, one aged 15 to 20 years, the other 25 to 35 years. A third grave contained cremated remains. Once the wood is recovered and restored, the chamber will be reconstructed and displayed in a museum.
9. Secret Basement
A 2015 article from Business Insider revealed that a massive, hidden basement located ten stories below New York City’s Grand Central Terminal was considered 'a prime target' throughout World War II.
During a tour of the underground chamber, which was once heavily guarded to prevent enemy sabotage, Daniel Brucker of the Metropolitan Transit Authority pointed out the large rotary converters that ran continuously, 'converting alternating current into direct current to power the third rails and trains entering and exiting Grand Central Terminal.' Later, these rotary converters were replaced by three solid-state rectifiers. If two of the rectifiers are sabotaged, the remaining one is still capable of keeping all trains running in and out of the terminal.
8. Hidden Warehouse
Among the 5,500 items stored in a secret warehouse somewhere in Atlanta, Georgia, owned by the U.S. company holding salvage rights to the RMS Titanic, you’ll find items like an alligator-skin purse, still-functional perfume bottles, an upturned bathtub, a dented porthole, etched glassware, and tiny buttons.
The BBC was granted a tour of the facility and uncovered the stories behind several artifacts. One particularly emotional account is that of Marian Meanwell, a third-class passenger aboard the doomed Titanic. She was journeying to the U.S. with her newly widowed daughter. Inside Meanwell’s purse were a photograph believed to be of her mother, a reference letter from her former landlord, and her 'medical inspection card' confirming her good health. Tomasina Ray, director of collections for RMS Titanic Inc., explains that preserving these items is crucial as they give voice to Meanwell’s story, ensuring she is remembered as more than 'just another name on the list.'
Other artifacts serve as reminders of the Titanic’s luxurious amenities, but some brittle rivets containing slag support the theory that the use of inferior materials in the ship’s construction may have contributed to its rapid sinking.
The various cups and plates aboard the Titanic reveal class distinctions, with each class of passengers receiving progressively finer items. A third-class mug was plain, sturdy, and simply decorated with the 'bright red White Star logo.' A second-class plate featured a 'pretty blue floral design and appeared a little more elegant,' while a first-class plate was crafted from fine china with 'gold trim and an intricate garland pattern.' Unlike those in second and third class, first-class passengers were served on silver plates.
7. Secret Schools in Cameroon
In Cameroon, over 260 schools have been shut down, and many of those still in operation, like the one attended by 11-year-old Mackjourney in Douala, are increasingly becoming illegal. In Bamenda, the nation’s capital, and across much of the country, schools have been targeted by separatist fighters wielding guns, forcing their closure.
A major tactic in the separatist movement has been the school boycott, enforced by kidnapping students and teachers who defy the order. As a result, 600,000 children are out of school. Mackjourney explained he left Bamenda because of the war, sharing that it was terrifying to 'sit in class with bullets raining on the roof.' Now, he and other children attend 'secret' schools in locations deliberately chosen to make them difficult for the authorities to discover.
6. Secret Schools in Afghanistan
In Afghanistan, the Taliban has banned all girls from attending school beyond primary grades. In defiance, some girls aged 15 to 19 secretly attend underground schools. If caught, their teachers face arrest and potential beatings, but such risks haven’t deterred them. As one female teacher said, 'Even if it leads to consequences, it’s worth it.'
One of these secret schools has just twelve students. BBC reporter Secunder Kermani observes, 'They’ve done an impressive job attempting to recreate a real classroom, with neat rows of blue and white desks.'
There is division within the Islamic clergy regarding the Taliban’s ban on female education. While Kermani notes that he’s cautious not to criticize the ongoing school closures, Sheikh Rahimullah Haqqani, an Afghan cleric in Pakistan respected by the Taliban, argues that 'there is no justification in sharia [law] to say female education is not allowed. No justification at all.' Similar rulings from clerics in Herat and Paktia provinces in Afghanistan suggest a 'widespread endorsement for girls’ education, even among conservative circles.'
5. Secret Jungle Hospital
In a chilling personal account shared by Sky News chief correspondent Stuart Ramsey, he recounts an unsettling moment while reporting on Myanmar’s covert jungle hospital. A doctor woke him from his sleep to inform him that a patient—a 17-year-old boy whose back was riddled with shrapnel from a mortar explosion—had arrived.
Surrounded by the sounds of nearby warfare, the hospital operates under strict blackout conditions. The chief surgeon, Dr. Myo Khant Ko Ko, who relocated to the jungle to treat casualties of the ongoing conflict that began in 2021 after the military took control, assesses the boy’s injuries using only a flashlight.
Blackout conditions are briefly lifted during the surgery as the injured teenager undergoes treatment in the tent. The hospital remains hidden because the military disregards international law, and although the medical staff lacks weapons, they are often targeted by military forces. Equally concerning is the fear that 'a spy posing as a family member might relay GPS coordinates to the military.'
4. Secret House
Reeta Herzallah and Hamdi Almarsi were each fined £2,000 after being convicted of constructing a hidden house inside their garage. The house was concealed behind a tall fence, as well as the garage itself. The new residence even had an entrance from a nearby one-way street, which was also deemed illegal, just like the converted garage.
Despite Blaby District Council in Leicestershire deeming the Enderby residence completely unacceptable and demanding the garage be returned to its original state and the fence removed, the illegal modifications remained, leading to legal action. Neither Herzallah nor Almarsi appeared in court or entered a plea, and both were ordered to pay a £770 fine for violating the orders, £1,252 in legal costs, and a £77 victim surcharge.
3. Hidden Military Base
Though it has been around since the Cold War, a now-defunct military base buried deep beneath the Greenland Ice Sheet was unknown to all except a select few until cryospheric scientist Chad Green, employed by the U.S. National Aeronautics and Space Administration, flew over it and took a photo from his Gulfstream III aircraft. As Jeff Thompson notes, the aircraft also registered 'a ping' from below the ice, revealing the remains of 'Camp Century.'
At first, no one at NASA knew what to make of the discovery, but its true nature became clear when the U.S. disclosed its identity to the Danish government, which governs Greenland. The site was a military base, built in 1959, consisting of 21 tunnels that served as both a U.S. Army Corps of Engineers facility and the location of Project Iceworm, designed to store nuclear missiles targeting the Soviet Union. When it became clear the ice sheet was unstable, Project Iceworm was abandoned.
Though it may be gone, the secret military base still poses a potential danger. With the threat of climate change accelerating the erosion of Greenland's ice, hazardous materials like nuclear waste, diesel fuel, and other contaminants left behind at the site could pollute the surrounding environment.
2. Research Laboratory
The UK, like many other nations, conducts research into chemical weapons and lethal diseases. This research is carried out just 5 miles (8 km) outside Salisbury, Wiltshire, in a highly secure and top-secret facility known as Porton Down, or more formally, the Ministry of Defence’s Science and Technology Laboratory. Scientists at Porton Down study dangerous pathogens, such as Ebola, Yersinia pestis (the bacteria responsible for the plague), and anthrax, among others. As BBC’s security correspondent Frank Gardner describes it, these are 'diseases that can kill us.'
The UK government assures the public that it complies with the Chemical Weapons Convention. However, it still produces small amounts of chemical and biological agents to ensure the development of medical countermeasures and to test defense systems. While Porton Down also tests its microbes on animals, it aims to minimize such controversial experiments. The introduction of Porton Man, a humanoid robot, is expected to reduce the need for animal testing. This robot has already been used to check for leaks in respirators and protective camouflage suits worn by soldiers.
1. Hidden Museum
Hidden away in a secret museum in McLean, Virginia, are 600 intriguing artifacts, including a tiny camera that fits within a cigarette pack, a martini glass designed to explode, and a scale model of Osama bin Laden's compound in Abbottabad, Pakistan. This model was used in planning the mission on May 2, 2011, in which U.S. Navy SEAL Team Six took down al-Qaeda’s founder.
BBC’s security correspondent Gordon Corera reports that the model of bin Laden’s compound had only recently been declassified when journalists, escorted by security, were permitted to visit the CIA’s secret museum. The museum’s aim is to educate CIA personnel about the agency's complex history, both its achievements and shortcomings, so that they can perform their duties more effectively, as explained by Robert Z. Byer, the museum’s director.
The museum engages the public in a unique way: the CIA plans to post coded images on social media, challenging citizens and others to decipher them.
