Kalla fakta: Frimurarnas hemlighet

Secret societies play a far larger role in our everyday lives than we are aware of. Historian Dr Marian Füssel searches for clues surrounding history’s most famous secret societies and conspiracy theories.

With unique and unprecedented access to one of the world's oldest social networking societies this series asks who are the Freemasons and what do they do?

How can man appropriate a space to live there in safety, in society and above all in harmony with the surrounding environment? It is Philippe Simay, humanist and philosopher, who takes us into this true epic of Human Habitat and sets the tone for the journey. Philippe is a tireless surveyor of the city, an explorer of living spaces. Determined to travel the world, Philippe decodes the way in which the inhabitants he meets appropriate space, shape it and adapt to it.

From the moment a slaying is reported, authorities assemble a "Murder Book" to document details of the investigation, starting from the crime scene and ending with the arrest of the perpetrator. Murder Books and the stories within them have been confidential until now. Investigation Discovery's MURDER BOOK reopens recently solved cold cases to reveal the chilling details behind the crime.

What did Sultan Alp Arslan think when he was confronted with an army three times larger than his own troops? Will the Byzantine emperor Romanos Diogenes remove the Turkish threat? Romanos Diogenes, who had become the emperor in the Byzantine army after his successful experience, and Sultan Alp Arslan, who was appointed Father of Conquests, Emperor of the Great Seljuk Empire.

In this five-part series, comedy legend Sir David Jason hits the West Coast of the USA. He’s on a revealing and entertaining journey of a lifetime by planes, trains and automobiles, discovering the machines that made America and changed the world.

Sir David Jason explores his favourite great British inventions and discovers how and why they were first thought up

A documentary series on the machines of war, in particular the machines of the 20th century. Covers such diverse topics as tanks, bombs, espionage equipment, nuclear weapons and aircraft.

Aerial cinematographer Doug Thron uses next-generation drone technology to find animals who are stranded or left behind by natural disasters and get them back safely to their owners or to their natural habitat.