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1
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Household Gadgets
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2
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City Beneath Our Feet, The AKA Underground Surprises
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3
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The Chunnel
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4
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The Space Station
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5
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The Pentagon
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6
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Bridges
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7
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Prisons
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8
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Gadgets
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9
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Great Inventions
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10
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Office Wonders
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11
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Police Technology
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12
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Disaster Technology
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13
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Tower Bridge
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14
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Concrete
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15
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Camping Technology
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16
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Private Planes
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17
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Race Cars
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18
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Traffic
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19
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Buses
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20
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Gold Mines
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21
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Banks
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22
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The Erie Canal
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23
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Trucks
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24
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Aswan Dam
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25
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China's Great Dam
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26
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The Maginot Line
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27
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Video Games: Behind the Fun
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28
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Body Shop (1)
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29
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Body Shop (2)
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30
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Machine Tools
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31
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Farming Technology
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32
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Assembly Line
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33
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Suez Canal
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34
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London Underground
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35
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Combat Training
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36
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Remote Operated Vehicles
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37
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Death Devices
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38
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Power Plants
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39
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Inventions of War
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40
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Plumbing: The Arteries of Civilization
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41
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Line of Defense
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42
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The St. Louis Arch
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