Whether it is secret rooms or secret islands, there are laws and restrictions in place and the message is clear: stay out
#11 Vatican Secret Archives, Vatican
Housing magnificent cathedrals, this place is the seat of the Catholic Church and home to its spiritual leader- the Pope. However, accessing the secret archives here is prohibited! No one can visit the secret rooms except for the highly qualified scholars
#10 North Sentinel Island, India
A part of Andaman and Nicobar islands, North Sentinel Island is a home to a peculiar tribe that is extremely intolerant of any intrusion from the outside world. Whoever tries to intrude in their island gets killed by them. Therefore, it is forbidden to go there!