Sky History 2 Tomorrow

Experts scrutinise prehistoric ruins, asking whether humans could have built such advanced structures alone, and examine the possibility of alien intervention

Experts examine an ancient Hindi scripture about a giant flying creature landing on Earth, and consider if this could be a description of an alien spacecraft

Experts investigate mysterious beings with big heads and eyes, whose images were found carved into rocks. Known as the 'greys', they are rumoured to be alien life forms

The Hollywood actor marvels at the ambitious construction and at the determination of the people who built Stonehenge and the Moai statues of Easter Island

How ancient cultures around the world have aroused fascination and provoked fear with curses and objects used to conjure them, such as rings, tablets and stones

Part two of two. On the orders of Hitler, more than 5,000 slave labourers were shipped to Alderney to build a series of fortifications designed to protect the island from attack

The billion-dollar horde buried deep beneath the deserts of Utah, the massacre so horrific it was captured from space and the ice cave of the Norse fire God

The mysterious Arizona desert cypher, the lair of the war elephant and a trip to a 'zombie' village

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Experts scrutinise prehistoric ruins, asking whether humans could have built such advanced structures alone, and examine the possibility of alien intervention

Experts examine an ancient Hindi scripture about a giant flying creature landing on Earth, and consider if this could be a description of an alien spacecraft

The crucial role ships have played in international conflict over the past 500 years, focusing on the first metal warships

The story of the Great Locomotive Chase - an attempt by northern spies to steal steam locomotive The General during the American Civil War

Remarkable feats of military engineering, focussing on the robot that defused bombs both on foreign battlefields and British streets, and an astonishing Gulf War minelayer

Experts investigate mysterious beings with big heads and eyes, whose images were found carved into rocks. Known as the 'greys', they are rumoured to be alien life forms

In the Midlands, a hospital advisor loves her new offices - until she feels a terrifying ghostly presence at night. In Tennessee, a lab technician sees a giant figure

Members of a family experience paranormal activity - including the spirit of an old lady - in their house built on a hospital campus

Experts scrutinise prehistoric ruins, asking whether humans could have built such advanced structures alone, and examine the possibility of alien intervention

Experts examine an ancient Hindi scripture about a giant flying creature landing on Earth, and consider if this could be a description of an alien spacecraft

Experts investigate mysterious beings with big heads and eyes, whose images were found carved into rocks. Known as the 'greys', they are rumoured to be alien life forms

Drawing on evidence old and new, Philip Mantle casts his verdict on one of the greatest mysteries of all time - is mankind alone or are there other intelligent lifeforms out there?

Graves, tombs, cremations are all considered respectful ways to provide the deceased with a final resting place. Can any of these practices preserve the soul for eternity?

Cameras follow the structure's Raven Master, and General Nicholas Houghton, former Chief of Defence staff and current Constable of the Tower

One of the world's most infamous deep-sea mysteries remains unresolved. As evidence continues to mount, the mystery of the Loch Ness Monster endures