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1
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Space Shuttle
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2
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The Brooklyn Bridge
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3
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Silver Mines
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4
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Tunnels
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5
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Tennessee Valley Authority
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6
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Paving America
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7
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Oil
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8
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New York Subways
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9
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The Railroads That Tamed the West
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10
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Great Towers In The Sky
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11
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Forensic Science: The Crimefighter's Weapon
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12
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The Search For The Polio Vaccine
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13
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The Stock Exchange
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14
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Transcontinental Railroads
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15
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Transatlantic Cable: 2500 Miles Of Copper
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16
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Earthmovers (1): The Power To Move Mountains
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17
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Deep Sea Exploration: Challenging The Abyss
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18
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The Alaskan Oil Pipeline
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