How Do They Do It?

Building the ultimate car crushing colossus; how Lea and Perrins concoct their Worcestershire sauce.

Scottish manufacturers use pedal power to weave a high-demand fabric for catwalks throughout the world; an Italian company leads the turnaround of the turntable; an Icelandic delicacy has a fishy tale to becoming edible.

Humble horsehair is turned into a bed fit for royalty; a 20-million-dollar, space-faring picnic basket keeps astronauts fed and watered for months at a time; subterranean salad is grown in a World War II bomb shelter below London's busy streets.

An Italian manufacturer makes a hat with enough flair for Hollywood's biggest stars; a low-fat, Icelandic dairy dish is set on conquering the world; a British company is engineering the ultimate commuter companion.

Manufacturers give a behind-the-scenes look at the chart-topping, six-string star of rock and roll; the motorsports secrets to racing around the clock with a road car turned endurance racer; the popular seafood spread made from cod roe.

Engineers look at Pisa's gravity-defying tower that has been tipping for 800 years; a lucky duck is unharmed while its down is used in the world's most-expensive duvets; a factory reveals the gastronomic genius behind a teatime accompaniment.