Underground Bases: The List

• African Underground
• Congo's Underground
• Egypt's Underground
• Kenya's Underground
• Sahara Desert's Underground
• South Africa's Underground
• Zimbabwe's Underground
• Asian Underground
• Afghanistan's Underground
• Cambodia's Underground
• China's Underground
• India's Underground
• Iran's Underground
• Israel's Underground
• Japan's Underground
• Kashmir's Underground
• Mongolia's Underground
• Russian Underground
• Saudi Arabia's Underground
• Tibet's Underground
• Turkey's Underground
• Vietnam's Underground
• Australian Underground
• Australia's Underground
• New Zealand's Underground
• Central American Underground
• Bahama's Underground
• Belize's Underground
• Costa Rica's Underground
• Guatemala's Underground
• Mexico's Underground
• Panama's Underground
• Puerto Rico's Underground
• European Underground
• Austria's Underground
• Crete's Underground
• Czechia's (Czechoslovakia's) Underground
• England's Underground
• Finland's Underground
• France's Underground
• Germany's Underground
• Iceland's Underground
• Ireland's Underground
• Italy's Underground
• Malta's Underground
• Norway's Underground
• Poland's Underground
• Romania's Underground
• Spain's Underground
• Sweden's Underground
• Wales's Underground
• Middle Eastern Underground
• North American Underground
• Canadian Underground
• Canada's Underground
• United States Underground
• Alabama's Underground
• Alaska's Underground
• Arizona's Underground
• Arkansas's Underground
• California's Underground A-J
• California's Underground K - N
• California's Underground O-Z
• Colorado's Underground
• Connecticut's Underground
• Delaware's Underground
• Florida's Underground
• Georgia's Underground
• Hawaii's Underground
• Idaho's Underground
• Illinois's Underground
• Indiana's Underground
• Iowa's Underground
• Kansas's Underground
• Kentucky's Underground
• Louisiana's Underground
• Maine's Underground
• Maryland's Underground
• Massachusetts's Underground
• Michigan's Underground
• Minnesota's Underground
• Mississippi's Underground
• Missouri's Underground
• Montana's Underground
• Nebraska's Underground
• Nevada's Underground
• New Hampshire's Underground
• New Jersey's Underground
• New Mexico's Underground
• New York's Underground
• North Carolina's Underground
• North Dakota's Underground
• Ohio's Underground
• Oklahoma's Underground
• Oregon's Underground
• Pennsylvania's Underground
• South Carolina's Underground
• South Dakota's Underground
• Tennessee's Underground
• Texas's Underground
• Utah's Underground
• Vermont's Underground
• Virginia 's Underground
• Washington DC Underground
• Washington's Underground
• West Virginia's Underground
• Wisconsin's Underground
• Wyoming's Underground
• Off World Underground
• 1990: D.I.P. Project Marxen UFO88
• 1991: Underground Cities of Mars - Article
• 2015: Mars’ Photo Reveals Alien Ship, Underground Bunker and Other Structures
• Off Planet Underground Bases
• Was a Mysterious Underground Structure Found On the Moon?
• Pole Underground
• An Underground Base in the Antarctica
• Antarctica's Underground
• Arctic - North Pole Underground
• South American Underground
• Argentina's Underground
• Bolivia's Underground
• Brazil's Underground
• Chile's Underground
• Colombia's Underground
• Ecuador's Underground
• Peru's Underground
• Uruguay's Underground
• Venezuela's Underground