More everyday items are put under the microscope as we discover how saunas are produced and wheelchair lifts are manufactured.

How do they turn thousands of tonnes of basmati rice into millions of microwaveable meals? How do they craft beautiful mechanical singing birds?

How do they make an almost invisible hearing aid that connects wirelessly to a phone? How do they build the carriages for London's new underground railway?

How do they build remote-controlled underwater robots to do jobs too dangerous for human divers? How do they make the world's most cuddly teddy bears?

More everyday items are put under the microscope as we discover how motion sensors and diving helmets are made.

More everyday items are put under the microscope as we discover how rawhide lampshades and MRI scanners are made.

A leak threatens the lives of astronauts upon re-entry. And a mission to the Salyut space station takes a surprise turn when the crew suffers from depressurisation.

Are time and space the same thing, and did the Big Bang start the cosmic clock? Is time itself an illusion? New experiments may hold the answer.

One of the great unsolved mysteries of the universe is how the force of gravity works. Why do all objects that have mass pull on one another?

The Yeti, a machine with 588 sharp teeth, helps keep the coldest airport in America running. Plus, mighty tugboats chew through ice chunks in Alaska.

Alaska's Coast Guard fights risky waters to maintain buoys standing three stories tall. Plus, an army of Alaskans build a steel ferry - several tons at a time.

Picture your dream car - does it look like a Peugeot RCZ R? The crew heads to its birthplace, revealing the inner workings and gorgeous exterior.

Picture your dream car - does it look like an Ariel Atom 3S? The crew heads to its birthplace, revealing the inner workings and gorgeous exterior.

Picture your dream car - does it look like an Audi S8? The crew visit its birthplace, revealing the complex inner workings and the gorgeous exterior.

Picture your dream car - does it look like an Ultima Evolution? The crew go to its birthplace, revealing the inner workings and gorgeous exterior.

Picture your dream car - does it look like a Ferrari California T? The crew go to its birthplace, revealing the inner workings and stunning exterior.

Picture your dream car - does it look like a Jaguar XF? The crew go to its birthplace, revealing the inner workings and stunning exterior.

A legendary train filled with stolen Nazi gold is said to be hidden in Poland. Rob and Stefan explore deep under the earth's surface to uncover the truth.

Priceless gold and silver artefacts are believed to be lost in King Solomon's hidden mines. Rob and Stefan search for the legendary treasure.

When a Chinese moon rover breaks down, a NASA scientist points to a mysterious material that seemed to sabotage the Apollo missions, decades earlier.

Apollo 12 astronauts bring back something alive from the moon and NASA track an asteroid heading towards Earth only to make a shocking discovery.

Ten years after the Mothership exploded, the military wants to turn the alien/human hybrids into super soldiers. An experiment reveals a mysterious blueprint.

More everyday items are put under the microscope as we discover how membrane filters, bridge ties, and Bi-planes are made.

More everyday items are put under the microscope as we discover how hospital laundry and horse replicas are made.

More everyday items are put under the microscope as we discover how ceramic fireplaces and parking garage floor slabs are made.

More everyday items are put under the microscope as we discover how oil pressure sensors are made and neck restraints are manufactured.

More everyday items are put under the microscope as we discover how mobile concert stages are built and mascara is manufactured.

More everyday items are put under the microscope as we discover how NASCAR car bodies are manufactured and thermal coffee pots are produced.

More everyday items go under the microscope. How are Grammy Awards, bicycle lights, above-ground pools and foldable solar panels made?

More everyday items go under the microscope. How are objects including LED stage lights, chemical tank trailers, and apple cider made?

More everyday items go under the microscope. How are objects including fishing lines, natural baking soda, industrial mixers and tow trucks made?

More everyday items go under the microscope. How are objects including storage sheds, industrial fans, climbing walls and parchment paper made?

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Jet Wing, Space Suit, and Aerial Tramway?

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Aircraft Carrier, and IMAX 3D Movie Experience?

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Solar Car, Skyscraper, and Hydroelectric Power Plant?

A DIY guide for building humanity's greatest inventions. How are a communications satellite, a tower crane and a groundwater replenishment system built?

Three cosmonauts die mysteriously as they re-enter Earth's atmosphere. Plus, a NASA rover discovers clues that help solve a murder.

Two astronauts trapped in the vacuum of space face an agonising death. Plus, the first close up images of Pluto reveal an alien landscape.

An Apollo 17 photo seems to show a US military outpost on the Moon and is life in the oceans of Jupiter's moons? Plus Neil Armstrong faces real danger.

Rob Nelson heads to Lake Michigan to investigate an unexplained, Bermuda Triangle-like phenomenon that has caused ships to disappear for centuries.

Archaeology expert and adventurer, Josh Gates, travels to Great Britain to explore the origins of the mystical monument of Stonehenge.

More everyday items are put under the microscope as we discover how upright pianos are manufactured and flags are produced.

More everyday items are put under the microscope as we discover how oil lamps are manufactured and chocolate mints are produced.

More everyday items are put under the microscope as we discover how skeletal replicas are manufactured and ice buckets are made.