For 5,000 years, the sacred site of Stonehenge has stood on the plain of Salisbury, England, silent witness to a myriad of mysteries. Who built the prehistoric stone circle? Druids? Merlin the Magician? Was it an altar for human sacrifice, or landing pad for UFOs? Experts, anthropologists, and astronomers assess the mystery.

In 1934, a photo of a dinosaur-like aquatic creature sparked a worldwide obsession with Scotland's Loch Ness Monster and stood as concrete evidence of its existence--until 1993, when it was proven to be a hoax! Believers and skeptics track Nessie's history from an ancient Pictic representation to modern Loch explorations.

The Gypsies were driven from India in the year 1000 and wandered Europe as performers.

Behind the scenes interviews with Hell's Angels leaders and members reveal the fascinating life and danger of the Hell's Angels. Hunter S. Thompson shares his notorious experiences and ultimate betrayal by the Angels, and law enforcement gang specialists provide perspective on the gang's violence and criminal activities.The story of how the Angels got their start in the 1940s how the 1954 film The Wild One made them famous. See the Angel's explain their point of view about many of most controversial incidents, including the infamous Rolling Stones concert at Altamont where the club was hired to provide security, with explosive results.

The Tulsa race riot was a large-scale, racially motivated conflict on May 31 and June 1, 1921, in which a group of white people attacked the black community of Tulsa, Oklahoma. It resulted in the Greenwood District, also known as 'the Black Wall Street' and the wealthiest black community in the United States, being burned to the ground.

This documentary is about the wall built almost 2,000 years ago during the Roman occupation of the British Isles in a failed attempt to keep Scottish and other tribes out of England.

Return to a glittering city who's saga begins and ends with the sea. It rose from a malarial swamp to dazzle and dominate the world. But is it destined for a watery grave?

The hunt for Communists in the United States clearly reached the point of hysteria by the early 1950s, but what is often overlooked is that it had its origins in a very real phenomenon. The opening of the Soviet archives in the 1990s, and the declassification of certain intercepted Soviet messages from the late 1940s, indicates that Soviet agents had penetrated the U.S. government before and during World War II, in some cases at very high levels, including the Office of Secret Services, the Los Alamos nuclear lab, the State Department and the U.S. Congress. Now evidence gleaned from declassified secret Russian cables and newly opened KGB files shows that Soviet penetration indeed ran deep; even the Congressman who set up House Un-American Activities Committee was on the KGB payroll!

Modern explorers continue to search for El Dorado, the legendary South American country rich in gold.

Visionary authors, historians, and scientists reveal how fiction and reality merge.

Whether miracles really take place, including a look at those believed to be "miracle workers," from Jesus to Edgar Cayce.

Documentary that examines the medicine shows and snake oil salesmen of the 19th century and how their legacy has resurfaced throughout the 20th century. The program also examines the popularity of today's herbal remedies and asks if they are just the latest incarnation of exaggerated health cures.

"Saints and Sinners of the California Missions" tells the story of Spanish priests and soldiers who established permanent settlements along the California coast in the late 18th century. Included: obstacles in the way of the group's mission, such as natural disasters and human resistance.

Asteroids. From bullet-sized rocks to massive slabs as big as a city, they hurtle through the solar system pulverizing anything they crash into. Decimating vast forests in the Siberian wilderness. Gouging out huge chunks of the planet, killing off the dinosaurs. Asteroids have had an enormous literal impact on history. As we go IN SEARCH OF HISTORY we'll discover if our fate is truly in the heavens...and in the path of an asteroid.

Reveals exciting and controversial military campaigns that have all but faded from American history--a showdown with Britain that began over a pig; a war in Korea fought in 1871, not 1950; and a U.S. citizen's attempt to seize control of Nicaragua! Covers little-known invasions in Russia, Central America, and the Caribbean as well. (cc) [TV G] 9:00/6:00 Top Secret Missions of the CIA. Bodysnatch/The War That Never Was. First, CIA officer Duane Clarridge engineers a clandestine operation with the FBI to "kidnap" international terrorist Fawaz Yunis from Cyprus and bring him to the U.S. to stand trial. Then, CIA Officer Bill Lair launches Operation Momentum, a covert mission to arm and train mountain tribesmen in Laos to battle communist infiltration.