1. Snake Island
Where to find it: Brazil
2. U.N. buffer zone
Where to find it: Cyprus
3. Tomb of Qin Shi Huang
Where to find it: China
4. Chernobyl
Where to find it: Ukraine
5. Area 51
Where to find it: Nevada
6. North Sentinel Island
Where to find it: India
7. Vatican Secret Archives
Where to find them: Vatican City
8. Fort Knox
Where to find it: Kentucky
9. Svalbard Seed Vault
Where to find it: Norway
10. Lascaux cave
Where to find it: France