#8 Lascaux Caves
Lascaux caves are located in the southern France. The caves comprise of more than 600 artistic paintings and inscriptions.
Though the caves were open to public back then, due to the increasing amount of CO2 exhaled by people faded out the paintings and the government had to force shut it down.
#7 Elizabeth’s Room
Queen Elizabeth II’s room is said to be somewhere deep inside the Buckingham Palace.
Not many of the workers in there know of this location either and it is a secret for a long time now.
There are a lot more secret locations to be revealed by you!!