The Knights Templar were a powerful legion of sword-wielding monks who terrified the Muslims during the Crusades.
The bizarre death cult of the Inca held banquets for their mummified ancestors and even dressed them in fine clothes and jewelry.
Throughout history people experiment with drugs to expand their perception.
An exploration of human attempts to know the future, from the Oracle of Delphi to the prophecies of Nostradamus.
Greek structures: the Parthenon; the Acropolis; the Agora.
An examination of age-old sacred rituals and rites of passage from various points in time around the world.
Anthropologists use artifacts to envision life in the Aztec Empire.
Recalling the final days of Russia's Romanov dynasty, including insight into the rumored family curse.
Exploring why dragons have appeared in the legends of many cultures, and scientific evidence that proves their existence.
Scientists search for the origin of a deadly sickness that claimed millions of lives in the 6th century.
Historians visit various sites in England and Wales in search of proof regarding the tales of King Arthur.
Viking explorers reach Greenland and eventually North America.
Speculation on the Incas' unknown reasons for building Machu Picchu.
Ponce de Leon's foolhardy quest for the mythic Fountain of Youth.
An examination of the large timber castles that once dominated medieval Europe.
Temple mounds, platform mounds and thousands of other mounds remain from the ancient city of Cahokia.
Chinese folklore tells of Shangri-La, a lost civilization where immortals live in perfect peace.
The temple city of Palenque flourished for more than 1,000 years until the Maya abandoned it in the year 835 A.D.
Archaeologists study the little-known culture of the ancient Celts.
Barbarians invade the seaport city of Ostia in A.D. 330, leading to its decline and eventual abandonment.
Venetians build a city in a lagoon to escape barbarians.
A 1987 grave robbery leads to the discovery of the Royal Tombs of Sipan in Peru.
New Mexico's Chaco Canyon contains 19 towns built by ancient Pueblo Indians.
Archaeologists explore the ancient Mexican city of Teotihuacan.
Investigating man's search in the sky for answers to earthbound problems.
Pharaohs who follow Queen Hatshepsut's reign try to wipe her name from history.
The temples of Karnak and Luxor were the sites of ancient Egyptian secret societies, priests, scholars and scribes.
An exploration of the 8,000 rooms, white-marble terraces and formal garden comprising the Forbidden City.
The gilded palaces and stone temples found hidden and abandoned deep in the jungles of Cambodia are explored.
Visits to temples and monuments highlight an exploration of voodoo, a mix of African religions and Roman Catholicism.
The rites surrounding death and burial, the oldest known human ritual.
Theories surround the final resting place of the legendary ark of the covenant, reputedly the container of the Ten Commandments.
Explanations and history behind the alleged existence of vampires.