Palmyre, à la croisée des mondes

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.

With an area three times larger than Pompeii, Baia, about 15 km from Naples and within the volcanic area of the Phlegraean fields, is the largest underwater archaeological site in the world. In 100 BC Pompeii is an ordinary city of small traders crouched on the slopes of Mt. Vesuvius, while Baia gains a peculiar reputation: it gradually becomes the ancient Las Vegas or Monte Carlo of the Roman Empire, a real posh center for noble gens and the powerful . Nestled in the center of the Gulf of Pozzuoli, Baia is flanked on one side by the port of Puteoli (ancient Pozzuoli) and on the other by the port of Capo Miseno.

In this special follow-up programme, the only television team with access to the dig and the scientific tests on the skeleton uses unseen footage and conducts two days of additional interviews to tell this extraordinary forensic detective story in even greater scientific and archaeological detail.

Filmed in IMAX, a young Mayan boy who lives close to the ruins becomes acquainted with an archaeologist (Guerra) and asks her to tell him about his ancestors. The crew travelled to over 15 locations in Mexico and Guatemala, including Tulum and Chichén Itzá.

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.

David Attenborough brings to life, in unprecedented detail, the last days of the dinosaurs. Palaeontologist Robert DePalma has made an incredible discovery in a prehistoric graveyard: fossilised creatures, astonishingly well preserved, that could help change our understanding of the last days of the dinosaurs. Evidence from his site records the day when an asteroid bigger than Mount Everest devastated our planet and caused the extinction of the dinosaurs. Based on brand new evidence, witness the catastrophic events of that day play out minute by minute.

Huelva, Spain, an isolated region lost in time. The grass, the sand and the sky are the same that those foreigners saw in the spring of 1895, when they crossed the sea from a distant country to mark the unspoiled terrain and extract its wealth, when the tower was new, when people could climb to the top of the highest dune and imagine that the city of Tartessos was still there, in the distance, almost invisible in the morning brume.

In summer 2003, when the heatwave hit in Europe, in Switzerland, the glacier below the Schnidejoch pass, released a mysterious object: a piece of a Neolithic quiver.

It is possible that only one per cent of the wonders of ancient Egypt have been discovered, but now, thanks to a pioneering approach to archaeology, that is about to change. Dr. Sarah Parcak uses satellites to probe beneath the sands, where she has found cities, temples and pyramids. Now, with Dallas Campbell and Liz Bonnin, she heads to Egypt to discover if these magnificent buildings are really there.