Covering more than 300,000 square metres, the John Deere factory houses more than 2000 employees, 49 robotic welders, eight laser cutters and 14 kilometres of overhead track, all of which help stamp, press, cut and weld 60,000 tons of steel into the John Deere STS Combine a harvesting mega-machine. To begin the process, extremely precise laser cutters are used to create a majority of this mini-factory on wheels 17,000 parts. Assemblers then create the combines 450 kilogram cylinder and its massive grain tank. The factory uses nearly 400 tonnes of welding wire each year enough wire to circle the globe. When the combine has been assembled and is ready for painting, it undergoes a seven-hour process to receive the trademark John Deere green colour. When John Deere decides to update its tractors design, the modification is first tested in the factorys state-of-the-art virtual reality lab to measure the potential impact to the assembly line process, saving both time and money. With its 21st century technology and human innovation, the John Deere mega factory shows the raw power behind one of agricultures most vital machines.

NGC takes you into the factories responsible for completely rebuilding the decades-old Abrams M-1 tank into one of the world's most powerful land weapons systems.

Inside Ferrari's closely-guarded factory in Maranello, Italy, you'll see how the newest, most powerful model is created from start to finish, learn its design secrets -- and take a test drive at 200 mph.

Harley Davidson is a legendary machine that is a symbol of freedom, adventure and the open road. Go behind the scenes of the 10-acre flagship factory in Kansas City to witness the birth of the latest model, the V-Rod, as it's built from the ground up.

NGC heads to the Boeing plant in Mesa, Arizona -- where cameras are rarely allowed -- for an in-depth look at the world's most lethal attack helicopter and its sophisticated technology.

What's the secret to Budweiser's success? NGC takes you inside the Anheuser-Busch brewery in St. Louis to learn the steps, secrets and science behind this legendary concoction.

At the Peterbilt factory in Denton, Texas, the world's most sophisticated trucks are built from scratch. Discover Peterbilt's history and drag race a big rig.