Stonehenge: The Lost Circle Revealed

Ardal O’Hanlon explores a 1930s quest to find the first Irish men and women using archaeology, answering his deepest questions about what it means to be Irish.

Irish director Donagh Coleman explores the extraordinary phenomenon of Tukdam, whereby some Tibetan Buddhist practitioners are able to forestall physical decay at the point of clinical death for days, even weeks, by entering a deep meditative state. Supported by His Holiness the Dalai Lama a group of leading scientists conduct groundbreaking research into the phenomenon, which challenges Western medical understanding of the line between life and death.

The first transatlantic communications cable, traversing the ocean floor from Valentia Island, County Kerry, to Newfoundland, Canada, 165 years ago was an 8 year endeavor that helped lay the foundation of the modern technology industry and explains the fragility of undersea cables today.

An exploration of Cologne Cathedral, an emblematic monument and world heritage site. The towering place of worship took over 600 years to complete. Once the tallest building in the world, its ornate facade remains a masterpiece of Gothic architecture - and a reflection of the evolution of Franco-German relations.

Sir John Franklin set off from England in 1845 with two ships and 129 men to be the first to navigate the Northwest Passage, a new trade route over the top of the world, when Franklin’s ships vanished without a trace. Now, a team of explorers attempts to solve the mystery by retracing Franklin’s route in search of his long-lost tomb.

Séfar (in Arabic: سيفار) is an ancient city in the heart of the Tassili n'Ajjer mountain range in Algeria, more than 2,400 km south of Algiers and very close to the Libyan border. Séfar is the largest troglodyte city in the world, with several thousand fossilized houses. Very few travelers go there given its geographical remoteness and especially because of the difficulties of access to the site. The site is full of several paintings, some of which date back more than 12,000 years, mostly depicting animals and scenes of hunting or daily life which testify that this hostile place has not always been an inhabited desert. Local superstition suggests that the site is inhabited by djins, no doubt in connection with the strange paintings found on the site.

This Traveltalk series short visits an array of locations associated with England's heritage. Included are Runnymede, Windsor, Ascot, Lincoln, Wells, Salisbury, Glastonbury, and the ancient Stonehenge site.

Caroline Sturdy Colls, a world leader in the forensic investigation of Nazi crime scenes, is chasing clues to an unsolved case: a concentration camp that existed on the British island of Alderney. Witnesses and survivors claimed that thousands died there, but only 389 bodies have ever been found. Under heavy restrictions imposed by the local government, which may not want its buried secrets revealed, Colls must uncover the truth using revolutionary techniques and technologies.

Dalida was an international star, selling over 140 million records in 10 languages. But behind her glittering career and dramatic and tragic personal life, was her ever supportive younger brother Orlando. The documentary sheds light on the professional and personal relationship between the music icon and her producer, between sister and brother.

The Glorious Story of Castles Carriers of myths and legends, castles strongly mark our imaginations, appearing most often as the pivot of a dark and barbaric period. Reality is different. They are full of mystery and grandeur, emblematic abstractions of the Middle Ages, they testify to medieval civilization.

What if French Rock were born with Edith Piaf? From sweet sixties pop to today's gender-indifferent anthems, from feminist rebels of the seventies to fashion icons of the social media age, from Françoise Hardy to Christine & The Queens, via Vanessa Paradis, Catherine Ringer, Charlotte Gainsbourg and many more, Oh Les Filles! tells the untold story of French female rock stars. Narrated by Clémence Poésy, this groundbreaking documentary combines interviews and iconic footage to radically reverse perspectives and give the patriarchy a kick!

In 1587, more than 100 English colonists settle on Roanoke Island and soon vanish, baffling historians for centuries; now, experts use the latest forensic archaeology to investigate the true story behind America's oldest and most controversial mystery.

Using archival footage, cabinet conversation recordings, and an interview of the 85-year-old Robert McNamara, The Fog of War depicts his life, from working as a WWII whiz-kid military officer, to being the Ford Motor Company's president, to managing the Vietnam War as defense secretary for presidents Kennedy and Johnson.

A French documentary or, one might say more accurately, a mockumentary, by director William Karel which originally aired on Arte in 2002 with the title Opération Lune. The basic premise for the film is the theory that the television footage from the Apollo 11 Moon landing was faked and actually recorded in a studio by the CIA with help from director Stanley Kubrick.

Modern treasure hunters, led by archaeologist Ben Gates, search for a chest of riches rumored to have been stashed away by George Washington, Thomas Jefferson and Benjamin Franklin during the Revolutionary War. The chest's whereabouts may lie in secret clues embedded in the Constitution and the Declaration of Independence, and Gates is in a race to find the gold before his enemies do.