The narrator, Curious Ben, presents a list of 10 doors that should never be opened, as they pose a significant threat to humanity or are heavily restricted. These doors include:
1. The Vector Institute in Siberia, containing vaults with biological material, including the Smallpox and Ebola viruses.
2. The basement of the Chernobyl nuclear power plant, where a highly radioactive mass known as the "elephant's foot" is stored.
3. The Vatican Secret Archives, a restricted library containing sensitive documents and potentially extraterrestrial evidence.
4. A secret door in Machu Picchu, Peru, which has been sealed by the Incas and is believed to contain treasures and hidden cameras.
5. The Onkalo nuclear waste storage facility in Finland, where radioactive waste is stored and heavily guarded.
6. The tomb of Emperor Qin Shi Huang, which contains high concentrations of mercury and is believed to be trapped with crossbows.
7. The Coca-Cola formula vault in Atlanta, USA, which protects the secret recipe of the popular soft drink.
8. The tomb of Tutankhamun, which is believed to be cursed and has caused the deaths of many who have attempted to open it.
9. The Svalbard Global Seed Vault in Norway, which stores millions of seeds to preserve crop diversity in case of a global catastrophe.
10. The "Door to the Underworld," a cave in Belize used by the ancient Mayans for spiritual ceremonies, which is said to be inaccessible and potentially deadly.
The narrator emphasizes the importance of leaving these doors closed to avoid putting humanity at risk.
Here are the key facts from the text:
1. The VECTOR Institute in Siberia has a vault containing biological material that can be dangerous to humans if released.
2. The vault contains virus samples, including the Smallpox virus and the Ebola virus.
3. Smallpox has caused the death of almost 300 million people worldwide.
4. Smallpox was eradicated around 1980, but two samples have survived and are stored in the VECTOR Institute and the Center for Disease Control and Prevention in Atlanta.
5. The Chernobyl nuclear power plant has a basement containing a radioactive mass known as the "elephant's foot".
6. Exposure to the "elephant's foot" for an hour can be fatal within two days.
7. The Vatican Secret Archive, also known as the Vatican Apostolic Archive, is a library with almost 85 kilometers of shelves and over 600 documentary collections.
8. Access to the Vatican Secret Archive is restricted, and only a few people have been able to access it throughout history.
9. The archive was created in 1612 by Pope Paul the Fifth and contains documents from over 800 years of history.
10. The tomb of Emperor Qin Shi Huang in China contains a large amount of mercury and is said to be cursed, with many people dying after opening the tomb.
11. The Coca-Cola company has a vault in Atlanta, Georgia, that contains the secret formula for Coca-Cola.
12. The formula is only accessible to a select few people within the company.
13. The Svalbard Global Seed Vault in Norway stores over a million seeds from more than 6,000 species.
14. The vault is designed to protect the seeds from global catastrophes and is heavily guarded.
15. The "Door to the Underworld" is a cave in Belize that was used by the ancient Mayans for spiritual ceremonies.
16. The cave is said to be inaccessible and has been found to contain human skeletons.
17. Ken Allen, a Bornean orangutan, escaped from his cage at the San Diego Zoo multiple times.