Caligula was a notoriously sadistic Roman Emperor with a wanton disregard for life. Roman citizens, even those with money and power of their own, lived in fear of Caligula's cruelty.

Hannibal's merciless attacks on Roman soil dealt a near fatal blow to the soon-to-be Empire. Sworn by his father to a blood oath against the Romans, Hannibal of Carthage does the unthinkable... he marches 40 war elephants and a massive army over the Alps to gain an element of surprise. In three key battles--Hannibal uses terrain, intimidation and his iron will to annihilate the Roman Legions, killing every Roman soldier that he possibly can.

In 197 BC, the classic military conflict between the Ancient World's two dominant military systems took place in a chain of hills called Cynoscephalae (Greek for "Dogs' Heads") in Thessaly, Greece.

Although he may have been the richest man in Rome, Crassus was the political poor relation in the First Triumvirate. He needed military laurels to raise him up to the level of Pompey and Caesar, and he chose to try to get them in Parthia.

In a bold move for political power, Julius Caesar invades Gaul. Using a strategy of divide and conquer, Caesar's army marches through Gaul and seems unstoppable. But then, a young Gallic warrior named Vercingetorix rallies the Gauls together to drive Caesar out of their land for good. Armed inside the Gallic fortress at Alesia, with thousands of warriors, it seems that Vercingetorix has the advantage when Roman and Gallic forces face off. But Caesar will not give up. He orders his troops to surround the fortress with a massive barrier. When the armies finally clash, it's a showdown that will determine the fate of Gaul.

It's 52 BC and the great Roman Commander Julius Caesar is butchering is way through Gaul. Thanks in large part to the iron will of Caesar, the Romans complete their long quest for total Mediterranean dominance, defeating the Gauls in the final battle of the Gallic Wars. For a period of time though, Gallic victory seemed possible. Out-numbering the Romans five to one, they held the high ground, on the hilltop fortress city of Alesia. Caesar besieges Alesia, however, and builds a wall around the city cutting it off from all possible supply lines. When Gallic reinforcements arrive to break the blockade, Caesar puts a startling twist on his strategy by constructing a second wall between his army and the reinforcements. It is siege upon siege, but Caesar knows the Romans, although fewer in numbers, are better supplied.

The Roman Empire is crumbling. The once-mighty power has now been split in two and the barbarians are at the gates. Literally. The ravages of the Hunnic hordes behind them mean the Visigoths are forced to beg Rome to let them cross the Danube.

Chalons, 451 AD. What made this battle so compelling? Attila the Hun, the terrifying menace who had his eyes set on what was left of the Western Roman Empire.

The ancient Roman city of Ostia was once a vital seaport. Yet it died a slow, painful death. This documentary explores the reasons for its demise and looks at the abandoned wasteland today.

Explores the great cities built by the Romans as they conquered the world. How did Romans use the wealth and knowledge of the Greeks and Etruscans to build their cities? And how were they able to keep control of cities in the far reaches of their empire?

Do Rome's ancient monuments have secret connections to the Sun? New archaeological evidence, confirmed by NASA data and recreated in state-of-the-art virtual reality, suggests that early Roman emperors mastered architecture and astronomy to make the Sun create strange special effects for reasons both political and personal. One set up an obelisk and altar that blocked the Sun on the anniversary of Julius Caesar's murder, another built a domed room that bathed him in sunlight on certain days, and the Emperor Hadrian designed the Pantheon to mark cosmic events like equinoxes, and turned the central "oculus" of the temple dome into his own personal spotlight, but for what nefarious purposes? We uncover the last great mysteries of the ancient world's greatest empire. The answers are hidden in ancient ruins...and among the stars.

Caligula was a notoriously sadistic Roman Emperor with a wanton disregard for life. Roman citizens, even those with money and power of their own, lived in fear of Caligula's cruelty.

Hannibal's merciless attacks on Roman soil dealt a near fatal blow to the soon-to-be Empire. Sworn by his father to a blood oath against the Romans, Hannibal of Carthage does the unthinkable... he marches 40 war elephants and a massive army over the Alps to gain an element of surprise. In three key battles--Hannibal uses terrain, intimidation and his iron will to annihilate the Roman Legions, killing every Roman soldier that he possibly can.

In 197 BC, the classic military conflict between the Ancient World's two dominant military systems took place in a chain of hills called Cynoscephalae (Greek for "Dogs' Heads") in Thessaly, Greece.

Although he may have been the richest man in Rome, Crassus was the political poor relation in the First Triumvirate. He needed military laurels to raise him up to the level of Pompey and Caesar, and he chose to try to get them in Parthia.

In a bold move for political power, Julius Caesar invades Gaul. Using a strategy of divide and conquer, Caesar's army marches through Gaul and seems unstoppable. But then, a young Gallic warrior named Vercingetorix rallies the Gauls together to drive Caesar out of their land for good. Armed inside the Gallic fortress at Alesia, with thousands of warriors, it seems that Vercingetorix has the advantage when Roman and Gallic forces face off. But Caesar will not give up. He orders his troops to surround the fortress with a massive barrier. When the armies finally clash, it's a showdown that will determine the fate of Gaul.

It's 52 BC and the great Roman Commander Julius Caesar is butchering is way through Gaul. Thanks in large part to the iron will of Caesar, the Romans complete their long quest for total Mediterranean dominance, defeating the Gauls in the final battle of the Gallic Wars. For a period of time though, Gallic victory seemed possible. Out-numbering the Romans five to one, they held the high ground, on the hilltop fortress city of Alesia. Caesar besieges Alesia, however, and builds a wall around the city cutting it off from all possible supply lines. When Gallic reinforcements arrive to break the blockade, Caesar puts a startling twist on his strategy by constructing a second wall between his army and the reinforcements. It is siege upon siege, but Caesar knows the Romans, although fewer in numbers, are better supplied.

The Roman Empire is crumbling. The once-mighty power has now been split in two and the barbarians are at the gates. Literally. The ravages of the Hunnic hordes behind them mean the Visigoths are forced to beg Rome to let them cross the Danube.

Chalons, 451 AD. What made this battle so compelling? Attila the Hun, the terrifying menace who had his eyes set on what was left of the Western Roman Empire.

The ancient Roman city of Ostia was once a vital seaport. Yet it died a slow, painful death. This documentary explores the reasons for its demise and looks at the abandoned wasteland today.

Explores the great cities built by the Romans as they conquered the world. How did Romans use the wealth and knowledge of the Greeks and Etruscans to build their cities? And how were they able to keep control of cities in the far reaches of their empire?

Do Rome's ancient monuments have secret connections to the Sun? New archaeological evidence, confirmed by NASA data and recreated in state-of-the-art virtual reality, suggests that early Roman emperors mastered architecture and astronomy to make the Sun create strange special effects for reasons both political and personal. One set up an obelisk and altar that blocked the Sun on the anniversary of Julius Caesar's murder, another built a domed room that bathed him in sunlight on certain days, and the Emperor Hadrian designed the Pantheon to mark cosmic events like equinoxes, and turned the central "oculus" of the temple dome into his own personal spotlight, but for what nefarious purposes? We uncover the last great mysteries of the ancient world's greatest empire. The answers are hidden in ancient ruins...and among the stars.

Caligula was a notoriously sadistic Roman Emperor with a wanton disregard for life. Roman citizens, even those with money and power of their own, lived in fear of Caligula's cruelty.

Hannibal's merciless attacks on Roman soil dealt a near fatal blow to the soon-to-be Empire. Sworn by his father to a blood oath against the Romans, Hannibal of Carthage does the unthinkable... he marches 40 war elephants and a massive army over the Alps to gain an element of surprise. In three key battles--Hannibal uses terrain, intimidation and his iron will to annihilate the Roman Legions, killing every Roman soldier that he possibly can.

In 197 BC, the classic military conflict between the Ancient World's two dominant military systems took place in a chain of hills called Cynoscephalae (Greek for "Dogs' Heads") in Thessaly, Greece.

Although he may have been the richest man in Rome, Crassus was the political poor relation in the First Triumvirate. He needed military laurels to raise him up to the level of Pompey and Caesar, and he chose to try to get them in Parthia.

In a bold move for political power, Julius Caesar invades Gaul. Using a strategy of divide and conquer, Caesar's army marches through Gaul and seems unstoppable. But then, a young Gallic warrior named Vercingetorix rallies the Gauls together to drive Caesar out of their land for good. Armed inside the Gallic fortress at Alesia, with thousands of warriors, it seems that Vercingetorix has the advantage when Roman and Gallic forces face off. But Caesar will not give up. He orders his troops to surround the fortress with a massive barrier. When the armies finally clash, it's a showdown that will determine the fate of Gaul.

It's 52 BC and the great Roman Commander Julius Caesar is butchering is way through Gaul. Thanks in large part to the iron will of Caesar, the Romans complete their long quest for total Mediterranean dominance, defeating the Gauls in the final battle of the Gallic Wars. For a period of time though, Gallic victory seemed possible. Out-numbering the Romans five to one, they held the high ground, on the hilltop fortress city of Alesia. Caesar besieges Alesia, however, and builds a wall around the city cutting it off from all possible supply lines. When Gallic reinforcements arrive to break the blockade, Caesar puts a startling twist on his strategy by constructing a second wall between his army and the reinforcements. It is siege upon siege, but Caesar knows the Romans, although fewer in numbers, are better supplied.

The Roman Empire is crumbling. The once-mighty power has now been split in two and the barbarians are at the gates. Literally. The ravages of the Hunnic hordes behind them mean the Visigoths are forced to beg Rome to let them cross the Danube.

Chalons, 451 AD. What made this battle so compelling? Attila the Hun, the terrifying menace who had his eyes set on what was left of the Western Roman Empire.

The ancient Roman city of Ostia was once a vital seaport. Yet it died a slow, painful death. This documentary explores the reasons for its demise and looks at the abandoned wasteland today.

Explores the great cities built by the Romans as they conquered the world. How did Romans use the wealth and knowledge of the Greeks and Etruscans to build their cities? And how were they able to keep control of cities in the far reaches of their empire?

Do Rome's ancient monuments have secret connections to the Sun? New archaeological evidence, confirmed by NASA data and recreated in state-of-the-art virtual reality, suggests that early Roman emperors mastered architecture and astronomy to make the Sun create strange special effects for reasons both political and personal. One set up an obelisk and altar that blocked the Sun on the anniversary of Julius Caesar's murder, another built a domed room that bathed him in sunlight on certain days, and the Emperor Hadrian designed the Pantheon to mark cosmic events like equinoxes, and turned the central "oculus" of the temple dome into his own personal spotlight, but for what nefarious purposes? We uncover the last great mysteries of the ancient world's greatest empire. The answers are hidden in ancient ruins...and among the stars.