MEGASTRUCTURES

Dover Base, Delaware, is America's busiest military aerial port, responsible for more than 30% of US military materials sent overseas. How do they cope with the volume?

The biggest port in the world also has the most problems. 450 ships go in and out every day, carrying cargo worth billions. How do they navigate the vicious currents?

A look at the newest nuclear sub to prowl the oceans, the USS Virginia. Built to answer America's military needs for the 21st century, this underwater warship features many forward-looking advances in naval technology.

How would it feel to go from zero to 205 kph in three and a half seconds? Ride the world's fastest roller coaster, Kingda Ka and find out. Located at Six Flags Great Adventure theme park in New Jersey, U.S. this monster thrill ride is also the world's tallest roller coaster, with its highest point at a record-setting 45 stories. In this episode of MegaStructures, find out how workers overcome some of the most difficult engineering and weather challenges to design and construct the world record-breaking ride. Join the designers as they test their creation and follow the entire construction process from its slow and steady start through to its dramatic and heart-racing finish.