Ingeniería de lo imposible - Temporada 4

Since their spectacular rise in the 19th century, railroads have been at the cutting edge of engineering and technology and that remains true, even today. Extreme Railroads shines a light on the world's most extraordinary rail systems, including New York's Arthur Kill Vertical Lift Bridge, Japan's Bullet Train and California's Central Pacific Railroad.

• T4 E1 - Episodio 1

• T4 E2 - Episodio 2

• T4 E3 - Episodio 3

• T4 E4 - Episodio 4

• T4 E5 - Episodio 5

• T4 E6 - Episodio 6