Denver International Airport (DIA), Denver, CO   ... These theories most commonly claim that DIA is a new, secret [not-so-secret] headquarters or compound used by the Illuminati, New World Order, Neo-Nazis, or Reptoids. These claims are usually based on an alleged swastika shape that the runways and taxiways make when seen from the air, as well as murals, sculptures, and other engravings claimed to be secret code or "alien" language... One of the most prevalent conspiracy theories regarding the Denver International Airport is that the airport was built to conceal massive, top-secret, underground bunkers. ... https://rationalwiki.org/wiki/Denver_Airport_conspiracy_theories   Cheyenne Mountain Complex, El Paso County, near Colorado Springs, CO (https://www.norad.mil/About-NORAD/Cheyenne-Mountain-Air-Force-Station/)   Formerly the center for the United States Space Command and NORAD, the Complex monitored the air space of Canada and the United States for missiles, space systems, and foreign aircraft through its worldwide early-warning system.  Since 2008, NORAD and the United States Space Command have been based at Peterson Air Force Base and the complex, re-designated as an air force station, is used for flight crew training and as a back-up command center if required. The military complex has included, in the past, many units of NORAD, U.S. Space Command, Aerospace Defense Command (ADCOM), Air Force Systems Command, Air Weather Service, and Federal Emergency Management (FEMA). The complex's communication center is also used by the nearby U.S. Civil Defense Warning Center. https://en.m.wikipedia.org/wiki/Cheyenne_Mountain_Complex   NORAD/USNORTHCOM, El Paso County, near  Colorado Springs, CO (https://www.norad.mil/)   North American Aerospace Defense Command (NORAD /ˈnɔːræd/), known until March 1981 as the North American Air Defense Command, is a combined organization of the United States and Canada that provides aerospace warning, air sovereignty, and protection for Northern America.  Headquarters for NORAD and the NORAD/United States Northern Command (USNORTHCOM) center are located at Peterson Air Force Base in El Paso County, near Colorado Springs, Colorado. The nearby Cheyenne Mountain Complex has the Alternate Command Center. The NORAD commander and deputy commander (CINCNORAD) are, respectively, a United States four-star general or equivalent and a Canadian three-star general or equivalent https://en.m.wikipedia.org/wiki/North_American_Aerospace_Defense_Command   USAF Academy, Colorado Springs, CO   The Air Force Academy is both a military organization and a university. Much of the Academy is set up like most other Air Force bases, particularly the 10th Air Base Wing, but the superintendent, commandant, dean of faculty and cadet wing are set up in a manner resembling a civilian university. The Superintendent is the Academy's commanding officer and is responsible for the Academy's regimen of military training, academics, athletic and character development programs. The Commandant oversees the 4,400-member cadet wing and more than 300 Air Force and civilian support personnel and is responsible for cadet military training and Airmanship education, supervising cadet life activities and providing support to facilities and logistics. The Dean of Faculty commands a 700-person mission element and oversees annual course design and instruction of more than 500 courses crossing 32 academic disciplines and directs the operation of five support staff agencies and faculty resources involving more than $250 million. The 10th Air Base Wing comprises more than 3,000 military, civilian and contract personnel who conduct all base-level support activities, including law enforcement and force protection, civil engineering, communications, logistics, military and civilian personnel, financial management, services and the clinic, for a military community of about 25,000 people. https://www.usafa.af.mil/About-Us/   Fort Carson, El Paso County, near Colorado Springs, CO   Fort Carson is [a 137,000 acre Army  installation and] the home of the 4th Infantry Division, the 10th Special Forces Group, the 4th Security Force Assistance Brigade (SFAB), the 440th Civil Affairs Battalion (USAR), the 71st Ordnance Group (EOD), the 4th Engineer Battalion, the 759th Military Police Battalion, the 10th Combat Support Hospital, the 43rd Sustainment Brigade, the Army Field Support Battalion-Fort Carson, the 423rd Transportation Company (USAR) and the 13th Air Support Operations Squadron of the United States Air Force. The post also hosts units of the Army Reserve, Navy Reserve and the Colorado Army National Guard. Ft. Carson was also home to the 5th Infantry Div. Known as the Red Devils.  https://en.m.wikipedia.org/wiki/Fort_Carson   Peterson AFB, Colorado Springs, CO   The 21st Space Wing is headquartered at Peterson Air Force Base, Colo., and is the Air Force's only organization providing missile warning and space control to unified combatant commanders worldwide. Home of 53 mission partners supported on Peterson AFB and Cheyenne Mountain Air Force Station, including North American Aerospace Defense Command, U.S. Northern Command, Air Force Space Command (AFSPC), Space and Missile Defense Command/Army Strategic Command and the 302nd Airlift Wing (USAF Reserves). As the Air Force’s most geographically dispersed wing, the 21st Space Wing hosts these mission partners, while also providing and employing global capabilities to ensure space superiority to defend our nation and allies. The Knights of the 21st Space Wing can be found at 22 locations in nine countries around the world. https://www.peterson.af.mil/About/Welcome-to-the-21st-Space-Wing/   Schriever AFB, Colorado Springs, CO   It is the home of the 50th Space Wing of the Air Force Space Command, and this base provides command and control for over 170 Department of Defense warning, navigational, and communications satellites. Also housed at Schriever AFB are the Missile Defense Integration and Operations Center and the U.S. Air Force Warfare Center [and] the main control point for the Global Positioning System (GPS). https://en.m.wikipedia.org/wiki/Schriever_Air_Force_Base   Pueblo Chemical Depot Army Base, Pueblo, CO (https://www.cma.army.mil/pcd)   ..."responsible for the safe and secure storage of the chemical weapons stockpile in Colorado."  https://www.CMA.army.mil/pcd   Buckley AFB, Aurora, CO (https://www.buckley.af.mil/)   Buckley Air Force Base is assigned to Air Force Space Command and serves more than 92,000 active duty, National Guard, Reserve and retired personnel throughout the Front Range community. The host unit is the 460th Space Wing. Buckley AFB supports air operations, space-based missile warning capabilities, space surveillance operations, space communications operations and installation support functions.... The 460th Space Wing delivers global infrared surveillance, tracking missile warning for theater and homeland defense and provide combatant commanders with expeditionary warrior Airmen. https://en.m.wikipedia.org/wiki/Buckley_Air_Force_Base