This episode uncovers the technological leaps that have allowed the world s biggest cruise ship - the Independence of the Seas - to be developed. The ship cost 800 million dollar to build, carries her passengers in unrivaled luxury and is manned by a crew of 1,360 who occupy a vast behind-the-scenes world of control rooms, kitchens and engine spaces. Longer than 5 jumbo jets and weighing more than 80,000 family cars, this episode explores how this gargantuan ship was made possible through a series of six historic engineering breakthroughs.