Modern Marvels · Season 7, Episode 2
Modern Marvels Season 7 Episode 2: City Beneath Our Feet, The AKA Underground Surprises
About Modern Marvels: Celebrating ingenuity, invention and imagination on a grand scale, "Modern Marvels" tells the amazing stories of the doers, dreamers and sometime-schemers who create everyday items, technological advancements and man-mad
More from Season 7
Season 7, Episode 1: Household Gadgets Season 7, Episode 3: The Chunnel Season 7, Episode 4: The Space Station Season 7, Episode 5: The Pentagon Season 7, Episode 6: Bridges Season 7, Episode 7: Prisons Season 7, Episode 8: Gadgets (1) Season 7, Episode 9: Great Inventions Season 7, Episode 10: Office Wonders Season 7, Episode 11: Police Technology Season 7, Episode 12: Disaster Technology Season 7, Episode 13: Tower Bridge Season 7, Episode 14: Concrete Season 7, Episode 15: Camping Technology Season 7, Episode 16: Private Planes Season 7, Episode 17: Race Cars Season 7, Episode 18: Traffic Season 7, Episode 19: Buses Season 7, Episode 20: Gold Mines Season 7, Episode 21: Banks Season 7, Episode 22: The Erie Canal Season 7, Episode 23: Trucks Season 7, Episode 24: Aswan Dam Season 7, Episode 25: China's Great Dam Season 7, Episode 26: The Maginot Line Season 7, Episode 27: Video Games: Just For Fun Season 7, Episode 28: Body Shop (1) Season 7, Episode 29: Body Shop (2) Season 7, Episode 30: Machine Tools Season 7, Episode 31: Farming Technology Season 7, Episode 32: Assembly Line Season 7, Episode 33: Suez Canal Season 7, Episode 34: London Underground Season 7, Episode 35: Combat Training Season 7, Episode 36: Remote Operated Vehicles Season 7, Episode 37: Death Devices Season 7, Episode 38: Power Plants Season 7, Episode 39: Inventions Of War Season 7, Episode 40: Plumbing: The Arteries Of Civilization Season 7, Episode 41: Line Of Defense