16. Google Data Center at the Google campus in Council Bluffs.
Since Google stores public data, it remains heavily guarded and not readily available compared to other famous places like the White House or the Buckingham Palace.
17. Ashgabat in Turkmenistan.
The capital of independent (from the Soviets) Turkmenistan since 1991 is a difficult place to visit as visitors need an invitation for a visa to be issued.
18. Chapel of the Ark of the Covenant in Ethiopia.
This chapel contains the sacred Ark of the Covenant and is located next to the church of St Mary of Zion. The Ark is guarded by virgin monks who are required to stay in the chapel grounds until they die.
19. Mount Weather in Virginia.
Mount Weather was built during the Cold War and is intended to be a relocation site for high-level officials in case of national disaster.
20. White’s Gentleman’s Club in London.
White’s Gentlemen Club is the oldest and most exclusive English gentlemen’s club in Regency London. It was built in 1693 by Italian Francesco Bianco.
