S03E01 - Berlin Wall

S03E02 - Impossible bridges: Denmark to Sweden

S03E03 - Impossible Bridges: Greece

S03E04 - Apache Helicopter

S03E05 - Hoover Dam

S03E06 - Inside NCIS

S03E07 - Impossible Bridges:China

S03E08 - Garbage Mountain

S03E09 - Ice Hotel

S03E10 - Machines of War: Tanks

S03E11 - Supertanker

S03E12 - Machines of War: Missiles

S03E13 - How it's built: Steel

S03E14 - Machines of War: Guns

S03E15 - Panama Canal Unlocked

S03E16 - Science of Bricks

S03E17 - Science of Concrete

S03E18 - Megafactories Ferrari

S03E19 - Ultimate Structures: Super Pipeline

S03E20 - Rockeaters of Iceland