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• S7.E1 ∙ Proving Grounds
• S7.E2 ∙ Commercial Jets
• S7.E3 ∙ Apollo 13
• S7.E4 ∙ Survival Technology
• S7.E5 ∙ Chesapeake Bay Bridge and Tunnel
• S7.E6 ∙ Garage Gadgets
• S7.E7 ∙ Construction Machines
• S7.E8 ∙ Hadrian's Wall
• S7.E9 ∙ Monster Trucks
• S7.E10 ∙ Lighthouses
• S7.E11 ∙ Computers
• S7.E12 ∙ Engineering Disasters 3
• S7.E13 ∙ Chemical and Biological Weapons
• S7.E14 ∙ International Airports II
• S7.E15 ∙ Codes
• S7.E16 ∙ The Colosseum
• S7.E17 ∙ Battle Gear
• S7.E18 ∙ Hardware Stores
• S7.E19 ∙ World Trade Center
• S7.E20 ∙ More Gadgets
• S7.E21 ∙ Cattle Ranches
• S7.E22 ∙ Saloons
• S7.E23 ∙ Cannons
• S7.E24 ∙ Nuclear Subs
• S7.E25 ∙ Air Shows
• S7.E26 ∙ West Point
• S7.E27 ∙ Quarries
• S7.E28 ∙ Diamond Mines
• S7.E29 ∙ The House: Part 1
• S7.E30 ∙ The House: Part 2
• S7.E31 ∙ Work Clothes
• S7.E32 ∙ Bunkers
• S7.E33 ∙ Cemeteries
• S7.E34 ∙ Drive-Thru
• S7.E35 ∙ Los Angeles
• S7.E36 ∙ Times Square
• S7.E37 ∙ Glass
• S7.E38 ∙ Firing Ranges
• S7.E39 ∙ The St. Louis Arch