1: 1. North Sentinel Island, India 2. Snake Island, Brazil 3. Poveglia Island, Italy

2: 4. Area 51, USA 5. The Pine Gap, Australia 6. Lascaux Caves, France

3: 7. Svalbard Global Seed Vault, Norway 8. Bohemian Grove, USA 9. Vatican Secret Archives, Vatican City

4: 10. Room 39, North Korea 11. Ise Grand Shrine, Japan 12. The Coca-Cola Vault, USA

5: 13. Jiangsu National Security Education Museum, China 14. The Coca-Cola Recipe, USA 15. Metro-2, Russia

6: 16. The Queen's Bedroom, Buckingham Palace 17. The White Gentlemen’s Club, Oxford 18. Club 33, Disneyland, USA

7: 19. The Niihau Incident, Hawaii, USA 20. Bohemian Grove, USA 21. Vatican Secret Archives, Vatican City

8: 22. Room 39, North Korea 23. Ise Grand Shrine, Japan 24. The Coca-Cola Vault, USA

9: 25. Jiangsu National Security Education Museum, China 26. The Coca-Cola Recipe, USA 27. Metro-2, Russia