Sezon 7
Bölümler
1 The City Beneath Our Feet 3 Oca 2000 
2 Tower Bridge 10 Oca 2000 
3 The Chunnel 11 Oca 2000 4 Space Stations. 3 Şub 2000 
5 The Pentagon 27 Mar 2001 
6 Bridges. 29 Şub 2000 7 Prisons 6 Mar 2000 
8 Great Inventions 16 Mar 2000 
9 Office Wonders 14 Mar 2000 
10 Police Technology 15 Mar 2000 11 Disaster Technology 17 Nis 2000 
12 Concrete 8 May 2000 13 Camping Technology 25 May 2000 14 Private Planes 31 May 2000 
15 Race Cars 6 Haz 2000 
16 Traffic 12 Haz 2000 17 Buses 19 Haz 2000 
18 Gold Mines. 22 Haz 2000 
19 Banks. 27 Tem 2000 
20 The Erie Canal 31 Tem 2000 
21 Trucks 3 Ağu 2000 
22 Aswan Dam 14 Ağu 2000 
23 China's Great Dam 22 Ağu 2000 
24 The Maginot Line 10 Eyl 2000 
25 Video Games: Behind The Fun 12 Eyl 2000 
26 The Body Shop 17 Eyl 2000 
27 Machine Tools 9 Eki 2000 
28 Farming Technology 15 Eki 2000 
29 Assembly Lines 16 Eki 2000 
30 Suez Canal 17 Eki 2000 
31 London Underground 18 Eki 2000 
32 Combat Training. 19 Eki 2000 33 Remote Operated Vehicles 25 Eki 2000 
34 Death Devices 2 Kas 2000 
35 Power Plants. 6 Kas 2000 
36 Inventions of War. 8 Kas 2000 
37 Plumbing: The Arteries Of Civilzation 14 Kas 2000 38 Line of Defense 5 Ara 2000 39 Gadgets 13 Mar 2000
2 Tower Bridge 10 Oca 2000 3 The Chunnel 11 Oca 2000 4 Space Stations. 3 Şub 2000 5 The Pentagon 27 Mar 2001 6 Bridges. 29 Şub 2000 7 Prisons 6 Mar 2000 8 Great Inventions 16 Mar 2000 9 Office Wonders 14 Mar 2000 10 Police Technology 15 Mar 2000 11 Disaster Technology 17 Nis 2000 12 Concrete 8 May 2000 13 Camping Technology 25 May 2000 14 Private Planes 31 May 2000 15 Race Cars 6 Haz 2000 16 Traffic 12 Haz 2000 17 Buses 19 Haz 2000 18 Gold Mines. 22 Haz 2000 19 Banks. 27 Tem 2000 20 The Erie Canal 31 Tem 2000 21 Trucks 3 Ağu 2000 22 Aswan Dam 14 Ağu 2000 23 China's Great Dam 22 Ağu 2000 24 The Maginot Line 10 Eyl 2000 25 Video Games: Behind The Fun 12 Eyl 2000 26 The Body Shop 17 Eyl 2000 27 Machine Tools 9 Eki 2000 28 Farming Technology 15 Eki 2000 29 Assembly Lines 16 Eki 2000 30 Suez Canal 17 Eki 2000 31 London Underground 18 Eki 2000 32 Combat Training. 19 Eki 2000 33 Remote Operated Vehicles 25 Eki 2000 34 Death Devices 2 Kas 2000 35 Power Plants. 6 Kas 2000 36 Inventions of War. 8 Kas 2000 37 Plumbing: The Arteries Of Civilzation 14 Kas 2000 38 Line of Defense 5 Ara 2000 39 Gadgets 13 Mar 2000