7.00 p.m. |HISTU| Relics of The Passion
Relics of the Passion of Christ are sacred objects supposedly scattered around the globe. Are they what the faithful believe them to be? We do the detective work to track down where these relics originated and where they can be found today, explain their meaning, and often question their authenticity. The Passion of Jesus Christ encompasses the violent end of a martyr, an unsolved forensic puzzle, and the start of a worldwide religious movement. In this hour, we use the Passion as a focus to begin tracking the most important relics of the Christian faith, including: the True Cross; the Crown of Thorns; the Holy Nails of the Cross; the Titulus, a small sign stating Christ's name and crime atop the Cross; the Spear of Destiny; a mysterious burial cloth called the Sudarium; an image of Jesus that appears on the Veil of Veronica; and the Holy Grail.

8.00 p.m. |HISTU| Time Machine: Ancient Computer?
Journey back in time for an eye-opening look at the amazing ancient roots of technologies we like to think of as modern. New research suggests that many of the inventions of the last 200 years may, in fact, have already been known to the ancients. In this hour, we explore the Antikythera mechanism, an ancient machine that was discovered deep in the Aegean Sea. Could it perhaps have been an ancient computer? Could Archimedes have had a hand in its creation?

9.00 p.m. |HISTU| Ancient Discoveries: Warfare
Warfare was a way of life in the ancient world. The technology of war drove ancient inventors and engineers to ever-greater lengths to defeat their enemies. They were, perhaps, the greatest masterminds of the battlefield-- yet who were they, and how did they make their sophisticated lethal machines more than 2,000 years ago? Ancient warfare was every bit as technical and lethal as today's warfare. Just witness the colossal and lethal Helepolis ("city taker"), history's most sophisticated siege machine. From the sinister machines that could bring a city's wall crashing down to Greek Fire, the napalm of the ancient world--warfare was as terrible then as now. The sheer ingenuity and complexity with which these war machines were created proves that the people of the ancient world were great inventors, mathematicians, and engineers.

10.00 p.m. |HISTU| Ancient Discoveries Ships
Lurking beneath Lake Nemi's blue waters lay the titans of Roman naval engineering--the Nemi Ships. Titanic luxury liners of the ancient world, they held inventions lost for thousands of years. But why were they built? Were they Caligula's notorious floating pleasure palaces--rife with excess and debauchery? Flagships of a giant sea force? It took Mussolini's obsession with all things Roman to finally prise the two wrecks from the depths of Lake Nemi near Rome. Using an ancient Roman waterway, he drained the lake and rescued the ships, an accomplishment captured on film that we access to illustrate this astounding story. Sophisticated ancient technology discovered in the boats transformed the understanding of Roman engineering overnight. Yet by 1944, the adventure had turned sour and the retreating German army torched the boats. We reveal the mysteries of the Nemi Ships and the ancient technology that made them possible.

11.00 p.m. |HISTU| Time Machine: Galen, Doctor to the Gladiators
In this fascinating series, we examine ancient inventions once believed to have been created in modern times, and test the wits of ancient inventors against some of the world's great modern inventors. Part 2 uncovers the revolutionary work of Galen, the great Roman doctor to the gladiators, who was performing brain surgery 2,000 years ahead of his time. We also explore the sophistication of Roman medicine and compare it to modern techniques.