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- Season 1 1993-12-10
- Season 2 1994-12-16
- Season 3 1995-08-20
- Season 4 1996-09-02
- Season 5 1997-08-17
- Season 6 1998-07-27
- Season 7 2000-01-03
- Season 8 2001-01-08
- Season 9 2002-01-02
- Season 10 2003-01-01
- Season 11 2004-01-16
- Season 12 2005-01-05
- Season 13 2006-01-04
- Season 14 2007-01-17
- Season 15 2008-01-07
- Season 16 2010-01-14
- Season 17 2010-10-29
- Season 18 2011-10-03
- Season 19 2013-07-16
- Season 20 2021-02-20
- Season 21 2021-07-25
- Season 22 2021-11-28
- Season 23 2022-02-16
Season 23 Episode
- Season 9 Breweries.
- Season 9 War Planes of World War II
- Season 9 The Winchester
- Season 9 Big Rigs of Combat: Tanks and Jeeps
- Season 9 Tunnels of Vietnam.
- Season 9 Helicopters
- Season 9 Private Jets
- Season 9 James Bond Gadgets.
- Season 9 Remote Control
- Season 9 Million Dollar Tech
- Season 9 Pleasure Boats
- Season 9 Bulletproof.
- Season 9 Siege Machines.
- Season 9 The Junkyard
- Season 9 The F-14
- Season 9 Engines
- Season 9 The Magnum
- Season 9 The Wheel
- Season 9 Star City
- Season 9 Ice Breakers
- Season 9 Fire and Ice.
- Season 9 Muscle Cars
- Season 9 Axes, Swords and Knives.
- Season 9 The World's Biggest Machines.
- Season 9 Drag Racing
- Season 9 The Manhattan Project.
- Season 9 The Tackle Box
- Season 9 Hunting Gear.
- Season 9 Camouflage
- Season 9 Models
- Season 9 Hangars
- Season 9 Beach Technology
- Season 9 The Big Dig
- Season 9 Super Guns
- Season 9 Strategic Air Command.
- Season 9 Gasoline
- Season 9 Towing.
- Season 9 Jet Engines
- Season 9 Nordhausen
- Season 9 War Trains
- Season 9 Liberty Ships of World War II
- Season 9 Magnets
- Season 9 The Chrysler Building.
- Season 9 The Autobahn
- Season 9 Home Tech
- Season 9 Cranes
- Season 9 The Internet: Behind The Web
- Season 9 Sherman Tanks
- Season 9 Great Train Disasters
- Season 9 Secret Life Of The Crash Test Dummy
- Season 9 High Tech Sex
- Season 9 The Spitfire
- Season 9 Garbage
- Season 9 More Bond Gadgets
- Season 9 Limos
- Season 9 Digi-Tech
- Season 9 Salt Mines
- Season 9 Concept Cars
- Season 9 Runways
- Season 9 Failed Inventions.
Modern Marvels - Season 9 Episode 39 Nordhausen
7.90 44 minutes It was the world’s largest underground factory–seven miles of tunnels built to manufacture Hitler’s secret weapons, primarily the V-2 rocket. But Nordhausen kept more than one secret. Technology and torture went hand-in-hand–25,000 concentration camp workers died there–and some of those associated with Nordhausen later helped take America to the moon.
