Hidden Beneath the Cities

MegaStructures is a documentary television series appearing on the National Geographic Channel in the United States and the United Kingdom, Channel 5 in the United Kingdom, France 5 in France, and 7mate in Australia. Each episode is an educational look of varying depth into the construction, operation, and staffing of various structures or construction projects, but not ordinary construction products. Generally containing interviews with designers and project managers, it presents the problems of construction and the methodology or techniques used to overcome obstacles. In some cases this involved the development of new materials or products that are now in general use within the construction industry. MegaStructures focuses on constructions that are extreme; in the sense that they are the biggest, tallest, longest, or deepest in the world. Alternatively, a project may appear if it had an element of novelty or are a world first. This type of project is known as a Megaproject.

A tense, filmic and high-octane drama-documentary series that brings to life the stories of people who have lived through paranormal experiences that defy explanation. Using a mixture of intimate first-hand testimony and grittily realistic drama, the audience is transported into a world turned upside down by extraordinary and terrifying events.

Don Wildman unearths relics from the world's greatest institutions to reveal secrets from the past. He examines each artifact to illuminate history's most incredible triumphs, sensational crimes and bizarre encounters.

Motoring programme featuring reviews of and reports about cars of all types.

Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks, treasures, and sunken cities on the bottom of lakes, seas and oceans around the world.

Go behind the scenes of the shows and movies of the Marvel Cinematic Universe, following the filmmakers, cast and crew, and Marvel heroes every step of the way.

From Monday Night RAW to WrestleMania, this series goes backstage with WWE Superstars and staff as they bring the company's biggest spectacles to life.

TV's most-watched history series brings to life the compelling stories from our past that inform our understanding of the world today.

American Masters is a PBS television series which produces biographies on enduring writers, musicians, visual and performing artists, dramatists, filmmakers, and others who have left an indelible impression on the cultural landscape of the United States.

Executive producer Jon Favreau invites the cast and crew of The Mandalorian to share an unprecedented look at the making of the series. Each chapter explores a different facet of the first live-action Star Wars television show through interviews, never-before-seen footage, and roundtable conversations hosted by Favreau himself.

Investigates a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Fresh, new evidence and perspectives will be showcased, such as never-before-released documents, personal diaries and DNA evidence.

This docuseries takes an unprecedented look at the enduring and influential legacy of DC, allowing fans to rediscover the universe of characters, as well as the iconic comic book company’s origins, its evolution and its nearly nine-decade cultural impact across every artistic medium.

Monsters can be found lurking behind any innocent smile and on any street corner in America. Never-before-seen-video footage stares straight into the eyes of these killers who hide in plain sight. Anyone can be a monster.

Morgan Freeman presents his quest in order to find how most religions perceive life after death, what different civilizations thought about the act of creation and other big questions that mankind has continuously asked.

A four-part series featuring four champions who ushered in a boxing renaissance. The series showcases the dominance of Roberto Duran, Marvelous Marvin Hagler, Thomas Hearns and Sugar Ray Leonard and their battles in and out of the ring.

Revisit the epic heroes, villains and moments from across the MCU in preparation for the stories still to come. Each dynamic segment feeds directly into the upcoming series — setting the stage for future events. This series weaves together the many threads that constitute the unparalleled Marvel Cinematic Universe.

Far from reality-show caricatures, this is true documentary filmmaking that brings viewers into the authentic and visceral experience of weekly therapy with four couples. World-class therapist Dr. Orna Guralnik deftly guides the couples through the minefield of honest confrontation with each other and with themselves, revealing the real-life struggles — and extraordinary breakthroughs — typically hidden behind closed doors.

Actor Zac Efron journeys around the world with wellness expert Darin Olien in a travel show that explores healthy, sustainable ways to live.

A British genealogy documentary series in which celebrities trace their ancestry, discovering secrets and surprises from their past.

Explore the world’s most fascinating, strange and inexplicable mysteries. Each episode features compelling contributions from scientists, historians, witnesses and experiencers—each seeking to shed light on how the seemingly impossible actually can happen.