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Hidden Beneath the Cities uncovers the extraordinary worlds lying just below modern urban centers. Beneath the streets of stone, soil and concrete exist hidden realms shaped by survival, ritual and imagination. Uncovers the extraordinary worlds that exist beneath major urban centres, from the tombs and wartime shelters of Naples to the manmade Royston Cave in Hertfordshire, England.

Cruising to the Ends of the Earth follows three wildly different voyages to share the diverse and breathtaking landscape of our planet. Filmed on board Princess Cruises ships, the series will journey to the frozen peaks of Alaska, the dazzling coastlines of South Korea and Japan, as well as travelling through ancient history via the Mediterranean.

Along the way, viewers will meet guests and crew on board the ships for the extraordinary trips. The series will follow them on sea and on land as they embark on bucket-list experiences and explore terrains like volcanic basins, archaeological sites, and cities with fascinating cuisine and culture.

History's Greatest Mysteries will investigate a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Each program within the franchise will showcase fresh, new evidence and perspectives including never-before-released documents to the general public, personal diaries and DNA evidence to unearth brand-new information about these infamous and enigmatic chapters in history.

The people, places and stories making news in the British countryside.

Transforming patients' lives, at the cutting edge of medicine. Meet the world-leading surgeons pushing science - and the human body - to its limits.

Michael travels through Uzbekistan in Great Central Asian Railway Journeys, tracing routes that echo the ancient Silk Road. This series sees Michael embarking on an epic railway exploration through the heart of Central Asia. Crossing desert landscapes and historic cities, he explores a region shaped by empire, trade and faith. Through encounters along the line, he examines how modern railways now link places that were once at the crossroads of the world. 

This is the incredible story of how Kim Kardashian was robbed of $6 million worth of jewellery during Paris Fashion Week 2016.

Led by Emmy Award-winning journalist Paula Zahn, On the Case features in-depth interviews and original reporting that go beyond the headlines in search of fascinating mysteries from within our nation's justice system. Each episode is highlighted by Zahn's riveting exclusive interviews, which draw out different viewpoints from the people personally connected to tragedies that rocked their local community and the investigations that attempted to piece together the truth On the Case with Paula Zahn.

Ancient Aliens explores the controversial theory that extraterrestrials have visited Earth for millions of years. From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode in this hit History series gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate. Did intelligent beings from outer space visit Earth thousands of years ago?

As the United States approaches its 250th anniversary, The American Experiment reexamines the improbable achievement that was the nation's founding, and the radical question at the center of the revolution: Can a people govern themselves? Featuring an extraordinary range of voices including former vice presidents and cabinet officials, current and former members of Congress, a former Supreme Court justice, leading historians, tribal chiefs, military experts, and thought leaders across the political spectrum, the series presents uniquely bipartisan, wide-ranging, and deeply informed conversations about the origins and future of American democracy. 

Tracking the years leading up to the Revolution through the drafting of the Constitution and the first American presidency, The American Experiment explores how a nation built on an untested idea has continued to wrestle with the foundational contradictions of slavery, liberty, individual power, and minority representation — and how American democracy has been built, challenged, and reimagined over the course of two and a half centuries. Cinematic in scope and urgently relevant, The American Experiment reveals how the debates that defined the country's founding era still shape the United States, posing a pivotal question at a moment of profound division: Can this extraordinary experiment endure?

The series follows lives undone by unthinkable betrayals and the courage it takes to survive scandalous confessions, secret lives, terrifying acts of violence, financial ruin and more.

How the gamble that brought professional soccer to America almost didn't pay off.

From underwater retreats and remote desert lodges to cliffside dwellings and treetop cabins, World's Most Secret Hotels visits the most hidden and remote hotels on the planet. 

Series of one-off documentaries that uses 70 years of the BBC archive to bring together clips under one theme, sometimes the shows have a presenter but often they don't.

Driven by a relentless hunt for the truth, Bustamante pulls back the curtain on modern-day mysteries that blur the line between fact and fiction. Using his unique perspective and insider techniques, he investigates, pressure-tests, and challenges prevailing narratives to reveal the hidden forces behind these events and the motives used to manipulate the truth. 

In Expedition X, Josh Gates joined by scientist Phil Torres and paranormal researcher Heather Amaro to investigate reports of supernatural encounters, mysterious creatures, and astonishing extraterrestrial phenomena. Whether trekking through the remote jungles of Cambodia in search of a legendary ape-man or exploring the secrets of the world's largest cave system right here in the United States, the Expedition X team is taking viewers to the stranger side of the unknown.

Making her debut in Expedition X Season 8 is third-generation paranormal investigator Heather Amaro. Amaro notably replaced former host Jessica Chobot, who was one of the main stars of Expedition X for its first seven seasons.

In 1979, four-year-old Heidi disappears without a trace in Kolding. Heidi has never been found and police are still at large in the case. The year before, 13-year-old Line was abducted in Lyngby. Police find her killed after three weeks. Both the abduction of Heidi and the murder of Line are unsolved, but the cases must never be forgotten. In both cases, we are pursuing the search to find important witnesses who can bring new information about both cases. We have gained access to the Travel Team's confidential journal of Heidi's case, and former Travel Team Manager Hans Jørgen Bonnichsen and several other police officers and witnesses stand up and tell about clues and important turning points in the case - clues that lead all the way to today with new angles and new knowledge about 'The Forgotten Girls'.