Behind the barriers: Myths and mysteries of 10 forbidden places on Earth

The world holds many mysterious places. These locations are inaccessible due to danger, secrecy, or preservation. Svalbard Global Seed Vault safeguards seeds. North Brother Island is haunted. Lascaux Caves protect ancient art. Plutos Gate emits toxic gases. Coca-Cola recipe vault holds a secret. Vatican Archives store Church documents. North Sentinel Island is home to an isolated tribe.