No. of Episodes:

29

Starring :

Season 4

17/05/2007

Episodes

Ultimate Structures: Super Copter

Dubai's Dream Palace (Worlds Tallest Hotel)

Smart Tunnel

Queen Mary 2

Hawaii Superferry

South Pole Station

Episode 8

Deep Ocean Port (China's Ultimate Port)

Episode 10

The World's Biggest Cruiseliner

Beijing Olympic Stadium

Episode 13

Episode 14

Future Trains

Building the World

Episode 17

Building Green Beijing

Atom Smasher

Megabridges: China

Ultimate Structures: Super Sub

Sun Engine

Super Pipeline

Hawaii Superferry

Extreme Alaska

World Trade Center Bahrain

The World's Biggest Shredder

Impossible Hotels: Dubai

Building Green Beijing

Episode 107