Most Restricted Places on Earth

North Sentinel Island, India

Home to an uncontacted tribe, the island is strictly off-limits to protect both the tribe and visitors from harm or disease exposure.

Area 51, USA

A highly classified U.S. military base in Nevada, shrouded in mystery and conspiracy theories. No civilian access is allowed.

Svalbard Global Seed Vault, Norway

Nicknamed the “Doomsday Vault,” it stores global seed samples in case of catastrophe. Only authorized personnel may enter.

Lascaux Caves, France

This prehistoric cave features ancient art dating back 17,000 years. It’s closed to prevent mold and damage from human presence.

Poveglia Island, Italy

Once used for quarantining plague victims and later as an asylum, this haunted island is off-limits to tourists due to safety and eerie history.

Snake Island, Brazil

Home to thousands of venomous golden lancehead vipers, this island is so dangerous that civilians are completely banned.

Vatican Secret Archives, Vatican City

Housing centuries-old church documents, the archives are closed to the public—only approved scholars may request access.