Chernobyl, Ukraine: Following the catastrophic nuclear disaster in 1986, the Chernobyl Exclusion Zone was established.
North Sentinel Island, India: Home to the Sentinelese tribe, one of the last uncontacted peoples in the world, this island is off-limits to visitors to protect the tribe's health and way of life.
Surtsey, Iceland: This volcanic island emerged from the ocean in 1963. Access is heavily restricted to protect its unique
Lascaux Caves, France: Famous for its Paleolithic cave paintings, the caves were closed to the public in 1963 to preserve the artwork, which was being damaged by the presence of large numbers of visitors.
Poveglia Island, Italy: Often referred to as one of the most haunted places on earth, this island was used as a quarantine station
The Tomb of Qin Shi Huang, China: The burial place of China's first emperor, known for the Terracotta Army, remains sealed.
Area 51, Nevada, USA: A highly classified remote detachment of Edwards Air Force Base, its secrecy has made it the frequent subject of conspiracy theories and UFO folklore. Access is strictly prohibited to the public.
Ise Grand Shrine, Japan: One of Shinto's holiest sites, the innermost shrine is not open to the public. Only a priest or priestess from the Japanese imperial family can enter.
Bouvet Island, Norway: This remote island in the South Atlantic Ocean is considered the most isolated uninhabited place on Earth.
Snake Island (Ilha da Queimada Grande), Brazil: Home to thousands of the highly venomous golden lancehead vipers