Alastair Sooke charts the fall of the Roman Empire through some of its artistic treasures, including one of the best preserved Roman cities in Libya.

Andrew Graham-Dixon explores the ancient Christian practice of preserving holy relics and the largely forgotten art form that went with it, the reliquary.

Portrait of a key architect of the Russian Revolution, Lev Bronstein, alias Trotsky, strategist days in October 1917, assassinated in Mexico in 1940 on Stalin's orders.

On December 17th 2003, a 25-year-old woman called Malalai Joya stood up during the Afghan Grand Assembly and declared that many of those present were 'felons' and 'criminals' who had turned the country 'into the nucleus of national and international wars'.

Laura Poitras' film tells how two men whose lives were caught up with Al Qaeda leader Osama bin Laden ended up taking very different paths after the invasion of Iraq.

Henry Kissinger has done more than any other individual to shape the foreign policy of the United States, both during his time as Secretary of State, and afterwards, as he continued to advise successive presidents and governments around the world.Over a p

Simeon II was declared Tsar of Bulgaria at the age of six, but ousted and banished aged nine by the Communist dictatorship, only to return triumphantly 55 years later in 2001 as Prime Minister, in an unprecedented journey from boy king to democratic leader.

The story of General Butt Naked, the despised Liberian warlord responsible for the death of 20,000 people, who reinvented himself as an evangelical preacher

Kimberly Rivers Roberts' chilling, Oscar-nominated home video captures the ferocious force of Hurricane Katrina as it lays waste to the city of New Orleans.

It ran on electricity, produced no emissions and catapulted American technology to the forefront of the automotive industry. The lucky few who drove it never wanted to give it up. So why did General Motors crush its fleet of EV1 electric vehicles into landfill sites in the obscurity of the Arizona desert?

The Khmer Rouge slaughtered nearly two million people in the late 1970s. Yet the Killing Fields of Cambodia remain unexplained. Investigative journalist Thet Sambath records shocking testimonies, from the foot soldiers to Pol Pot's right-hand man.

How the biggest international forensic operation in history identified the victims of the most devastating natural disaster of recent times.

In this documentary, the presenter and art critic Matthew Collings explores how Turner, the artist of light, makes light the vehicle of feeling in his work, and how he found inspiration for that feeling in the waters of the River Thames.

Documentary. What killed King Tutankhamun? An epic detective story that uncovers the extraordinary truth of the boy behind the golden mask.

This documentary traces the history of the Internet from a rarely heard perspective : it focuses on the people involved in its design and on political activists and hacktivists who use it , and defend the ideal.

Series looking at three of the world's most iconic wild places and how they have been shaped over time by man.

More than anywhere, the Serengeti is synonymous with wilderness and has even come to represent Africa. But the story of the Serengeti is just as much about humans as it is about wildlife.

As the world's first national park, Yellowstone has long served as a model for the protection of wilderness around the world. For Americans it has become a source of great national pride, not least because it encapsulates all our popular notions of what a wilderness should be - vast, uninhabited, with spectacular scenery and teeming with wildlife.

The Amazon rainforest is the epitome of a last great wilderness under threat from modern man. It has become an international cause celebre for environmentalists as powerful agricultural and industrial interests bent on felling trees encroach ever deeper into virgin forest. But the latest evidence suggests that the Amazon is not what it seems.

Unreported World reveals how Liberia is facing a child rape crisis.Six years after the end of a brutal civil war in which rape was routinely used as a weapon, children still face the daily fear of being attacked, and the West African country's hospitals are overwhelmed with child victims, a quarter of them under four years old.

This Unreported World comes from Sierra Leone where, ten years after one of the most brutal conflicts in recent history, thousands have been left severely traumatised. Reporter Seyi Rhodes and director George Waldrum find that the population, which has witnessed rape, torture and public executions, is served by just one psychiatrist.

1981: a devastating fire leaves 13 black teens dead. The protests, unrest and accusations of indifference defined race relations for a generation. From director Steve McQueen.

The story of the New Cross house fire of 1981, in which 13 young black British people died, and how its aftermath ignited an uprising by the black British community.

The story of the aftermath of the New Cross fire and the run up to the Black People’s Day of Action, a mass demonstration organised to bring the tragedy to the attention of the nation.

How tensions between the black community and the police boiled over into some of the biggest riots in British history, from Brixton to Toxteth, while the cause of the New Cross fire remained unknown.

This is the definitive and fully-authorised documentary of the highs and lows of the UK's most inspired and dissolute independent record label - Creation Records.

Usain Bolt is the fastest man on the planet and a sportsman like no other. But what makes him so much faster than any other man in the history of the human race?

Documentary on the life and times of Ken Loach. His politics in British TV and Cinema and the chaos he has caused the establishment for 50 years.

Documentary series charting the evolution of pop from Tin Pan Alley to today's billion-dollar industry.It begins by tracing the roots of pop in the meeting of two cultures: Jewish and African-American.

About 20 million years before the appearance of the first dinosaurs, the biggest extinction the world had ever known had occurred. Towards the end of the Triassic, 220 million years ago, there was another extinction, which wiped out many of the non-dinosaurs including the dicynodonts such as Placerias and primitive archosaurs such as Postosuchus. It was after this that dinosaurs really started to radiate and diversify.