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The Most Mysterious Military Facilities in the United States

Updated June 14, 2019 3.8k votes 875 voters 111.5k views21 items

List RulesVote up the mysterious military facilities in which you'd most like to know what's really happening.

The US government has plenty of secrets. Sometimes these secrets leak to the public, a little bit at a time. From such fragmented information, conspiracy theories develop. These strange US military facilities are like lightning rods for conspiracies. Unmarked helicopters patrol the skies, cameras film everything, and guests are kept under the closest scrutiny. Visitors can be sure they will only see what base personnel want them to see.

The common thread in these mysterious military facilities is that they operate in total secrecy. Often, it takes 50 or more years for their information to be declassified, if the documents are ever made public. Furthermore, there is no way to know if the public is being told a partial truth or the whole truth.

There are some things of which we can be certain. These secret American military facilities have been responsible for creating powerful and strange weapons. They have advanced technology, beyond what people know to exist. These are spy centers, testing ranges, and development labs. These are the places that are built to survive the end of the world.


Check out these weird US military bases and the crazy stories that go along with them. You might learn something, or even stumble upon a mystery bigger than you could possibly have imagined.

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  • 1

    Raven Rock Mountain Complex

    Video: YouTube

    Also known as Site R, Raven Rock Mountain Complex is an underground bunker designed to be the US Command center in the event of WWIII, as a backup for the Pentagon. Located near Blue Ridge Summit, PA, the facility is built into a mountain, and designed to withstand a nuclear blast. It is entirely self-sufficient, with two power plants, multiple underground water reservoirs, and a sophisticated ventilation system.

    It can operate for 30 days with no access to the outside world, and can accommodate 3,000 people.

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  • 2

    NSA Utah Data Center

    Video: YouTube

    Opened in 2013, this is the largest spy center ever built by man. It is a massive server farm created to monitor any and all Internet traffic, capable of storing approximately five zettabytes of data (a zettabyte is one billion terabytes). It cost about $2 billion to build and spans a million square feet. The facility has raised concerns from privacy advocates, who suspect it's being used to collect wholesale data on American citizens.

    The NSA allowed Greenpeace to fly a blimp over the facility, with a sign reading "illegal spying below" and an arrow pointing down.

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  • 3

    Cheyenne Mountain Complex

    Video: YouTube

    Carved into the mountains of Colorado, the Cheyenne Mountain Complex military base is home to NORAD (North American Aerospace Defense Command). Designed to withstand a nuclear blast, the facility monitors the skies constantly for any and all threats. It is owned and operated by the Air Force Space Command, and is completely self-sustaining, with its own power plant, heating and cooling system, and water supply.

    It is a level one security designation, more secure than the Pentagon.

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  • 4

    Diego Garcia

    Video: YouTube

    Diego Garcia is an atoll, which is basically a hollow island with a lagoon at its center, located in the Indian Ocean. In 1966, the British confiscated the atoll from the indigenous Chagossians, all 1,500 or so of whom were forced to relocate. Because Diego Garcia is UK territory, the US can operate a military base there without being beholden to US law. 

    At some point, a mysterious US Naval base opened on the atoll. It is believed that some al-Qaeda operatives are held and interrogated at Diego Garcia, though this allegation has been denied by the US military

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