When the tallest engineering marvels need to be maintained, only a handful of people have the courage and skills to do the job. Follow Trask Bradbury and his crew as they risk their lives to repair America's tallest and most inaccessible structures.

Scattered across the United States are abandoned structures, forgotten ruins of the past and monuments to a bygone era. Each one shines a light on the story of this land and its people, revealing the secrets of a hidden America.

Discover the extraordinary secrets behind uncharted jungles across the globe as experts use the latest science and tech to explore the lost civilizations and undiscovered treasures rumored to be hidden inside.

Archaeologists and historians use cutting-edge technology to investigate and explore some of the biggest mysteries surrounding the Underground Railroad, a secret network that helped enslaved African Americans escape to freedom.

In the pivotal struggle for WWII victory, the race to develop the first atomic bomb was critical to secure world dominance; now, experts reveal new evidence behind Nazi Germany's top-secret and cutting-edge development of catastrophic nuclear weapons.

Experts follow investigations to uncover new details about the most epic and infamous wrecks from history.

Within weeks of Pearl Harbor, Nazi U-boats attacked American ships within sight of the North Carolina coast leaving a trail of death and destruction; now, a team of experts turn this forgotten graveyard into a protected sanctuary in honor of the fallen.

For centuries, explorers have searched for the Bible’s most sacred religious artefacts. One of the most mysterious of these objects is the famed Ark of the Covenant. The gold-plated wooden chest – one of the most instrumental symbols of faith and God's presence – was believed to house the two tablets bearing the Ten Commandments. The Ark’s exact whereabouts has long puzzled scholars. Where did it go? And why has it remained such a mystery?

The Rover Arrives features some of the most incredible moments from the landing, including the first images that will be beamed back from Mars. Providing commentary for the special is Mark Rober, who worked on earlier Mars Curiosity rover mission at JPL and has since developed a huge following on YouTube, and NASA expert Ken Williford, who serves as the Deputy Project Scientist for the NASA Mars 2020 mission as well as the director of the JPL’s abcLab. Also streaming Thursday on discovery+ is NASA Mars Landing: Inside the Mission, which gives viewers an in-depth look at the Mars Perseverance Rover.

Ancient investigations turn tech as specialists harness an advanced digital forensics lab and use the latest scientific discoveries to solve the biggest mysteries of ancient history.

Ben Hansen is on a mission to uncover the truth behind UFO sightings across America. With unprecedented access to the archives of famed ufologist Dr. J. Allen Hynek, Ben unlocks the secrets of the past to shed light on today's UFO encounters.

Using cutting-edge forensic analyses, some of the world's leading investigative experts uncover the stunning truth behind compelling mysteries from ancient times to the recent past.

Meet the dedicated maintenance crews who race against the clock to ensure critical infrastructures are operating as designed every day.

See the ultimate guide to the Solar System from the dedicated people who sent spacecraft to explore the sun and the planets, and witness their astonishing tales of discovery as they reveal wonders never seen before.

Mysterious frozen lakes filled with bones, mummified bodies hanging from inside a glacier, and a 30,000-year-old virus frozen in ice brought back to life in a laboratory. In an all new Science Channel series, SECRETS IN THE ICE, experts and scientists are exposing dark secrets, forgotten treasures and lost relics from some of the coldest places on Earth. Using state of the art archaeological technologies and cutting-edge CGI animation, SECRETS IN THE ICE spotlights the mysteries that have been locked away in icy tombs all over the world for centuries. At the base of a massive glacier in Southern Greenland, Danish archeologists have discovered the remains of an ancient stone hut. Was this site the home to a Viking seer practicing black magic? In Siberia, archeologists have excavated a mummy with fantastical tattoos against the many warnings of locals. Have they uncovered buried treasure, or unleashed an ancient curse?

In the new series, SUPER FACTORIES, viewers will be taken inside of the world’s smartest, biggest and most cutting-edge factories to get a behind-the-scenes look at the many unique products they manufacture at baffling speeds with astonishing efficiency and precision. From the big and the mighty machines that push boundaries to create things like the McLaren supercar and Tesla batteries, to the useful products that make everyday life go round, such as the inner workings of UPS and the journey of Amazon parcels, SUPER FACTORIES spotlights the factories that make our world what it is today.

An international team of experts reveal the shocking true stories behind ancient Egypt's most infamous mummies. Using modern forensic science, they uncover horrific tales of life and death in one of history's most vicious and turbulent empires.

Archaeologists in South America reveal brand new discoveries that could lead to evidence of ancient civilizations across the entire Amazon basin.

Every year, the government funds clandestine programs collectively called the black budget. But what’s exactly behind these secretive missions operating around the globe? Former CIA operative Mike Baker will dig into these mysterious programs each week in Black Files Declassified.

A team of savvy boat captains and experienced divers seeks to unravel some of the biggest secrets surrounding the Bermuda Triangle.