History - Cities Of The Underworld Secrets Of Soviet Bases Format:DVD National Geographic investigates the "monkid"

National Geographic investigates the "monkid" phenomenon -- adopting monkeys as surrogate babies

These classic machines

In a universe as vast as it is mysterious

Astounding UFO confessions and vivid depictions from Alien abductees igniting experts and researchers to aggressively investigate the growing crisis

as they dive in over 200 feet of water some 95 miles offshore of Key West

History - Cities Of The Underworld Secrets Of Soviet Bases Format:DVD National Geographic investigates the "monkid"Deep within the former Soviet Union lies a classified, subterranean world of Cold War secrets. In Ukraine, which once had the world's third largest nuclear arsenal, Don ducks behind the Iron Curtain to reveal a how the Soviets were really preparing for a Nuclear War. From nuclear submarine bases to underground apartment blocks, these sites are so top secret, they've never before been seen on American television.