Synopsis
Since rumours of alien spacecraft emerged from Roswell, New Mexico in 1947, UFOs have increasingly been the subject matter of grainy, hand-held, out-of-focus 'proof'. Riddle of the Skies however presents the eyewitness accounts of distinguished scientists and astronauts.
Episodes
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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.
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TV's most-watched history series brings to life the compelling stories from our past that inform our understanding of the world today.
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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.
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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.
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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.
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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.
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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.
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