It remained hidden behind walls of sheer rock for more than 2,000 years. In 1812, Johann Burckhardt ventured into the Jordanian desert and discovered hundreds of structures stretching for miles along narrow canyons: the ancient city of Petra. Narrated by Leonard Nimoy, ANCIENT MYSTERIES journeys into the past, unlocking the secrets long held captive behind Jordan's sandstone cliffs. Nearly 200 years after its discovery, archaeologists are still astonished at the ruins of Petra. The city evokes wonder in all who behold it--who were the people who carved these structures into solid rock, and how? Wander through what was once a thriving, sophisticated city and glean insight into the Nabataeans, the ancient people who lived and worked here. What caused their strange disappearance? Interviews with archaeologists and anthropologists and stunning location footage illuminate an incredible account of THE HIDDEN CITY OF PETRA.

Palenque was a Maya city state in southern Mexico that flourished in the 7th century.

The court of King Arthur, Camelot was at the center of a world of magic and honor. But what lies behind this captivating legend?

The exploits of Eric the Red. The legend of Leif Ericson. The struggle for power the bond of a family and the courage to sail beyond a dark and dangerous ocean. Guided by their hopes the explorers of the North moved their horizon west in an odyssey of ice and uncertainity. Leaving Norway for Iceland and an inauspicious tundra they named Greenland the Norse in their long boats proved sturdy enough to reach one more distant shore--VINLAND. At the dawn of the century with the chance to settle a new home the long search seemed over and the future bright. Yet their stay proved so brief as to almost escape history until a fantastic find just thirty years ago by Helge Ingstad.

The structure of Machu Picchu, originally built by the Incas, is one of the most archaeologically stunning mysteries of the past. However, even today we are still unsure what its purpose was. Was it an observatory? A pleasure retreat? Or a Fortress? This programme attempts to uncover the historical and spiritual mysteries of this magical place.

It is one of the most puzzling tales to come out of the European Age of Discovery. And yet, the alleged search for the Fountain of Youth by Spanish explorer Ponce de León was almost certainly influenced by folklore from many centuries before.

The history of the timber castles that once populated medieval England, but are only mounds of earth today.

Explore some of the most intriguing archaeological sites on earth - the puzzling pre-historic mounds built by the ancient residents of North America.

A tale told through the centuries of a lost, hidden civilization that lives in an euphoric state of peace and harmony enclosed by impassable mountains.

An investigation of the origins of Stonehenge, the prehistoric megaliths on the Salisbury Plain in Wiltshire, England, believed to have been erected during the Neolithic period (circa 2000 B.C.).

It was a myth first told by Plato in the late 4th century B.C. - a dramatic tale of a powerful civilization living on an island that one day mysteriously disappeared underneath the rolling waves of the Atlantic.

Efforts to locate the remains of Alexander the Great. Included: the discovery of treasures in northern Greece that appear to have belonged to his father, Phillip II of Macedonia.

The Maya temple city of Palenque in Chiapas, Mexico, abandoned by the Mayans around 835 A.D., is explored. Included: the Temple of Inscriptions, a sarcophagus, and the great Palace.

Examination of the sophisticated system of housing built by the Pueblo Indians in New Mexico's Chaco Canyon over 1,000 years ago.

An examination of the Celts, whose culture reached its zenith in Europe between the 5th and 1st centuries B.C. Included: their artwork, religious practices and fighting tactics.

A look at British theater in the Elizabethan age.

A Roman soldier takes his spear and pierces the side of Christ as he hangs on a crucifix. Thus, the legend of the Holy Lance is born. Relics associated with the life of Christ have inspired awe and obsession throughout the ages. Giants of history ranging from Attila the Hun, Charlamagne and Adolf Hitler desired possession of this artifact that supposedly contains the power of God. What is the true story of the Holy Lance, and does it exist today?

A look at the first Olympic competitions in Greece, circa 776 B.C.

The ancient city of Ostia, Italy, used at one time as the port of Rome, from its founding by Ancus Marcius (641-616 B.C.) to its eventual decline and abandonment over a 1600-year period.

"The Miraculous Canals of Venice" looks into why - and how - Venetians built their city on 120 islands in the Adriatic. The city was first settled in the 5th century by people fleeing invading barbarians, and reached the height of its commercial and political prosperity in the 1500s.

“Blood and Treasure in Peru” chronicles the discovery - by grave robbers - of the royal tombs of Sipan, a treasure trove of artifacts produced about A..D. 400, and the find's effect on the international art market. The artifacts were produced by the Moche people, whose civilization flourished in Peru between the 1st and 9th centuries A.D.

Two-thousand years ago, Rome was an all-powerful empire and Pompeii was one of its prosperous provincial towns - until Mount Vesuvius exploded in the largest eruption ever recorded. In a matter of hours the thriving city was entombed under a thick layer of ash and debris, undiscovered for centuries.

Speculation on why the Roman emperor Hadrian constructed a wall along the empire's British frontier in the 2nd century. The wall (and accompanying fortifications) was built between A.D.122 and 136, and was abandoned by the end of the 4th century.

An examination of the 19 Pueblo towns located in New Mexico's Chaco Canyon, believed to be some of the earliest dwellings in North America. Included: a history of the Pueblo tribe.

An examination of the pyramids in the Mexican city of Teotihuacan. Also: the Temple of the Feathered Spirit and the Avenue of the Dead.

For thousands of years, the rich history of ancient Egypt was sealed off from the world, a mystery obscured by the pictorial language of hieroglyphics. But in 1799, the breakthrough needed to decipher the hieroglyphs was accidentally discovered. The Rosetta Stone -- a cryptic, black stone tabled -- held the key to knowledge of ancient Egypt. Yet it could not be translated until 1822, twenty-three years after the discovery, when its meaning was finally revealed by Francois Champollion, a young French scholar. Ancient Mysteries explores his struggle to decipher the Rosetta Stone and the glorious secrets it uncovered.

The mysterious gravesite of an ancient Chinese emperor, who had an "army" of 7000 terra cotta statues built around the tomb to guard it against intruders.

Are the secrets truly written in the heavens, or is the ancient practice of astrology further evidence of mankind's need to seek fate and meaning beyond the "real" world?

A profile of Egypt's Queen Hatshepsut attempts to explain why the male rulers who followed her tried to erase her name from history, despite her leadership on the battlefield and in government.

An examination of the Kamasutra, the Hindu text that details "the delights of the human sexual experience," focuses on its religious origins and whether it is sacred or profane. Included: comments from author Deepak Chopra.