http://www.lifebuzz.com/off-limits/
http://mentalfloss.com/article/66305/10-coolest-places-youre-not-allowed-visit
https://en.wikipedia.org/wiki/Svalbard_Global_Seed_Vault
https://www.forbes.com/sites/jimdobson/2015/09/28/will-the-worlds-most-dangerous-island-become-a-human-zoo-the-shocking-future-of-north-sentinel/#48a99ee62688
https://en.wikipedia.org/wiki/North_Sentinel_Island
http://www.ancient-origins.net/artifacts-ancient-writings/what-really-lies-hidden-vatican-secret-archives-007468
https://en.wikipedia.org/wiki/Vatican_Secret_Archives
https://www.washingtonpost.com/blogs/blogpost/post/bohemian-grove-where-the-rich-and-powerful-go-to-misbehave/2011/06/15/AGPV1sVH_blog.html?utm_term=.7af9ad1b509f
https://en.wikipedia.org/wiki/Bohemian_Grove
https://en.wikipedia.org/wiki/Ilha_da_Queimada_Grande
http://all-that-is-interesting.com/snake-island
https://en.wikipedia.org/wiki/RAF_Menwith_Hill
https://en.wikipedia.org/wiki/Big_Ben_(Heard_Island)
https://www.livescience.com/22454-ancient-chinese-tomb-terracotta-warriors.html
http://www.bradshawfoundation.com/lascaux/
https://en.wikipedia.org/wiki/Lascaux
https://en.wikipedia.org/wiki/Ise_Grand_Shrine
https://en.wikipedia.org/wiki/Yata_no_Kagami