Discovery Channel HD Wednesday

A look at the gravity-defying 'magic' behind Pisa's leaning tower. Plus, the making of chocolate digestive biscuits

How ancient Greeks invented parchment with techniques still used today. Plus, the making of shuttlecocks

A builder constructs an off-grid luxury home in the heart of Canada's East Coast, but he faces extreme weather as he works to build his dream home

A family attempts to build a cabin on a small island in northern Idaho, but access to the property is limited, and rough waters make it difficult to bring materials in

Dave and the crew start on a 1966 Corvette, but one major challenge lies ahead - his client doesn't want the colour to be anywhere close to its original green

After some intense development, a client is happy with the shade of green Dave has concocted, but the team are unsure if he will like it when he sees it in on the car

Mike finds a prime example of a Golf Rabbit GTi, which he thinks can be transformed, which means Ant has a lot of work to do

The group is excited when a legendary 1991 Toyota MR2 Turbo is found. However, one small fix becomes a big problem for Ant as the entire engine has to be removed

In Mississippi, the Raneys must first solve the mystery of flooding water before teaching a family of six to thrive off-grid together

Jared Douglas attempts to harvest the planet's biggest, most valuable trees. But getting these giants from the forest to market could kill him

To make up for lost profits, Jared takes a huge gamble on bringing two valuable pieces of machinery back to life after decades of neglect

One of the deadliest jobs in the world is that of the Alaskan crab fishermen. They brave the treacherous waves of the Bering Sea in search of valuable king crabs

In Derbyshire, Drew Pritchard finds a selection of oversized industrial antiques in a props business, before unearthing some even more interesting items at a salvage yard

The guys must invent a new process to get the C10's tricky hood just right, but the body work on this truck is where the art of the build truly comes out

Chaotic El Niño conditions impact the ice, flipping the gold miners' game plans upside down as some are forced off their claims

With a season-ending blizzard inbound, the miners must push past their limits, squeezing every last ounce from the creek to add to their haul

Josh Gates searches Cote d'Ivoire, West Africa, for a missing American military plane from World War II, and its crew of 18 members

It is time for the last list race and Big Chief, Ryan, and Daddy Dave are all hoping to end the season at the top, but a costly mistake threatens to derail one competitor

Chaotic El Niño conditions impact the ice, flipping the gold miners' game plans upside down as some are forced off their claims

With a season-ending blizzard inbound, the miners must push past their limits, squeezing every last ounce from the creek to add to their haul

Part one of two. Joe Martin is ready to upgrade a special car in his collection, a '60 Impala that's been collecting dust for nearly 25 years

A police detective confronts Mark and Digger at the pump. Tickle and the Laws try to help as Josh's sanity erodes surviving in the woods

Buying goods from home

Buying goods from home