How Do They Do It?

The secrets behind a company that delivers four billion packages a year are revealed. Then, the world's biggest fish market feeds Japan's insatiable appetite for seafood, and a giant tree trunk is turned into cricket bats.

A big-top circus tent is erected as high as a building in less than 36 hours. Then, Japanese workers create handcrafted guitars.

The world's largest cruise liner fits under a bridge lower than the ship. Then, dogs help hunt expensive truffles, and a lake of asphalt is turned into busy roads.

Powerboats are built that ride waves faster than most cars ride the road. Then, the secrets behind Swiss watches are revealed, and workers create high-quality wallpaper.

The centuries-old secrets behind making frankfurters are revealed. Then, sniper rifles are made that can hit a target from a thousand yards, and experts stop card sharks from swindling casinos out of millions.

Giant sturgeon are farmed for the delicacy of Russian caviar. Then, centuries of history are poured into Japanese porcelain, and workers create soccer cleats worn by the sport's greatest players.

The secrets behind keeping the cars of Daytona on the track for 24 hours of high-speed racing are revealed. Then, the sweetest sugarcane is turned into Caribbean rum.

The world's leading submarine rescue specialists from several countries participate in a training exercise. Then, workers manufacture all-wheel drive cars.

Workers manufacture toilets that massage and blow-dry. Then, the Navy tests a cutting-edge helicopter that doesn't need a pilot, and a jackhammer that doesn't cause the shakes is built.

Over a century of Italian craftsmanship is squeezed into an accordion. Then, wasabi paste adds a kick to raw fish, and workers create callers that make duck hunters sound just like their prey.

Danish bomb squads find and dispose of thousands of World War II landmines. Then, apples are turned into alcohol, and weed eaters chop down growth with just a sliver of nylon.

Roulette wheels are made that are perfectly unpredictable. Then, the secrets behind the purest olive oil are revealed, and a rusty, old wreck is turned into the Batmobile.

One of America's biggest breweries produces over a billion bottles of beer a year. Then, the secret behind a pack of cards that prevents cheating is revealed, and experts discuss the world's most luxurious jets.

Japanese scientists stimulate oysters to form perfect pearls. Then, handcrafted pretzels are made with a twist, and workers maintain the craft of the gondolier.

Experts reveal how Swiss cheese gets its holes. Then, a feared battle tank from the 20th century is given a 21st-century face-lift, and robot librarians help run one of the biggest book collections on Earth.

Rikers Island, one of the biggest jails in the world, is visited. Then, workers create the famous Royal Mail postbox, and fresh fruit is turned into millions of jars of jam.

A 700-year-old tree is turned into a Japanese drum weighing two tons. Then, a high-tech factory builds thousands of cars while staying green, and just two ingredients are turned into great-tasting pasta.

The largest football stadium in the United States is turned into an ice hockey rink. Then, robots are programmed to mass produce cars.

The secrets behind designing and producing the ultimate bowling ball are revealed. Then, the most famous bridge in the world is raised and lowered, and a factory manufactures millions of gummy bears a day.

The Japanese catch, prepare and eat the deadliest fish on the planet. Then, a single train delivers goods to thousands of locations across America, and Scottish workers weave over 700 types of tartan to make kilts.