Explore the defenses of ancient forts and cities. Discover the invisible underground defensive systems of Cappadocia and how they proved so successful. Test the ancient Mayan killer bee castle defenses, and release bees in an attack. A replica section of the ancient Roman fort of Alesia is built. And the most impregnable walls in history - the multi-layered defenses of Constantinople are investigated and along with the type of cannon that destroyed them in 1453.

Our modern day landscapes are littered with the remains of ancient superstructures. Now, cutting edge archaeology is beginning to reveal that this century's most exciting discoveries actually lie at the bottom of the ocean.

"Computing" covers the advancement of time-keeping techniques, from the classic sundial to Ctesibius's use of constant water flow and primitive gear mechanisms, leading up to what is known as the Antikythera mechanism. An isolated artifact discovered in the wreckage of an ancient cargo vessel, the mechanism's origin and use are largely a mystery, but its elaborate system of gears suggest an advanced early device for calculating the positions of the heavenly bodies.

"Medicine" is mostly devoted to Galen, a Greek physician in the Roman Empire who pioneered numerous medical techniques, honing his craft on wounded gladiators and soldiers on the battlefield. The unique discovery in this episode is a human skull that implies an effort to perform a rudimentary type of brain surgery.

The lake Nemi ships, large Roman vessels that were salvaged from the lake in the 1930s and burned in 1944, are discussed, including technological discoveries from the ships.

Warfare technology is examined, including the Helepolis, a square fortified tower on wheels; and "Greek Fire," an incendiary liquid that stuck to people and objects and couldn't be extinguished with water.

Robotics" is all about the great Heron of Alexandria, a clever machinist who used principles of air compression, wind power, and basic mechanics to swindle religious worshipers and entertain the masses at the theater. He also essentially invented the steam engine!

In this episode, journey to the site in Turkey believed to be the location of the real Troy as ANCIENT DISCOVERIES analyzes one of the world's greatest historical battlegrounds for new clues. Uncover fascinating evidence illuminating Achilles' duel against Hector, the sailing of the vast Mycenaean fleet and the great wooden ship of Troy. Watch as we apply modern technology, archaeology and engineering to uncover the real story behind this legendary war.

Might the stories of the Bible have their basis in ancient scientific fact? How big was the giant Goliath, and what was the tech of the sling that brought him down? We'll demonstrate that the tower of Babel could have been as tall as two miles in height, create fire from water as Elijah may have done, and in a never before attempted investigation, watch as archeologists fully levitate a replica of the Ark of the Covenant.

Unique technologies of ancient miners, including a Roman hydraulic system, sappers who could undermine castle walls and the 1689 origination of gunpowder mining in England.

Today, when you have to move a three-ton limestone sarcophagus you just grab a heavy-duty forklift. But what options did ancient engineers have in an age when the only sources of power were humans and animals? What ingenious methods and machines were utilized to move phenomenally heavy objects and to create structures that would put even today’s machines to the test? From the Pharos Lighthouse of Alexandria to the Parthenon on the Acropolis, this episode reveals the ingenuity of the ancient heavy engineers and shows how their machines built and transported some of the most amazing structures in Antiquity.

In this scintillating programme, we delve into the mysteries of ancient robots. The ancient world is littered with more references to automatic robotic machines than you might think. The mythical golden robot built by Hephaistos was fabled to roam the island of Crete three times a day, protecting its wealth. Its name was Talos, and it was famously depicted in the 1960s film ‘Jason and the Argonauts’. The gods were also supposed to have been surrounded by self moving ‘tripods’, doors which opened with acoustical signals and anthropomorphic robots. We ask if there is any truth in the amazing and sensational idea that the ancients had robotic devices. We examine the robotic inventions found in the texts of Homer, and compare them with machines known in the ancient world. In antiquity, Heron and Philon were the undisputed champions of robotic invention. We look at three of Philon’s most important automata inventions: the drinking horse machine, the automatic mechanism for supplying water and the automatic serving girl. Philon was working in the third century BC. We ask how he was able to create such marvels over 2000 years ago. We also look at automatic devices masterminded by Heron of Alexandria, such as robotic temple doors and the self-automated theatre. We also scrutinise the Hydraulis, an automatic water organ which was the favoured musical instrument of Emperor Nero. In an amazing discovery in Dion at the foot of Mount Olympia in Greece, the remains of a Hydraulis were found in 1992. Recently, a reconstruction was made of the instrument. It provided music for theatres, festivals and even amphitheatres. Yet the Hydraulis needed somebody to pump a bellows in order to provide an air supply. An automatic air supply was added to the machine in the shape of a small wind mill. A fully automated instrument had been created centuries before its time. For the first time in television history, we attempt to reconstruct the robotic machines of the ceremonial halls of the Byzantine Emperor of 830 AD. A variety of mechanisms were created in order to entertain visiting ambassadors and guests. There are stories of a gold pear tree with singing birds, two lions which roared while twisting their heads, griffins spreading their wings, and several wild animals that surrounded the throne roaring. It is thought these mechanical objects were commissioned by Emperor Theophiles from an unknown goldsmith. These craftsmen worked in the tradition of Heron of Alexandria, carefully crafting a mechanical scene which also contained singing and drinking birds. When the birds drank from a fountain, an owl turned its head towards the birds. There is still conjecture concerning whether these mechanisms operated by hydraulic power, water pressure or steam. Although no robotic human forms are thought to have been created, the ancient world did have self moving mechanical devices. We attempt to reconstruct some of these awe inspiring machines, decisively proving that the ancient engineers and inventors knew how to harness robotic technology 2000 years ago.

Revealing the terrifying truth behind torture; ancient inventors go to great lengths to develop precision devices to exact pain; the rack; burning at the stake; Vlad the Impaler.

The amazing successes and stunning failures of ancient military engineers influence today's weapons and tactics; an ancient Greek weapon is still used on aircraft carriers; rapid-firing Chinese catapult; Hannibal crosses the Alps.

Many ancient inventors imagined - and sometimes even constructed - machines for transport that would not be out of place today. This captivating episode reveals surprising new information about transportation technology invented by our distant ancestors. You will marvel at railway cars built in Greece in the 6th century BC and at the fantastic thirty-passenger wind-car designed in 6th Century AD China. You will trace the strings of evidence that hint at flying machines in ancient Greece, Egypt and China thousands of years before the Jet Age.

SUPERSHIPS reveals recent, extraordinary discoveries of ships from the ancient world. New scholarship and breakthroughs in underwater archaeology have vastly increased our store of knowledge regarding ancient navies. But with new information comes many questions. What do these finds say about the societies which created them, and the techniques they used in their construction? Who could have mustered the resources and know-how to construct such impressive nautical marvels? How did they build such remarkable ships? And, most intriguingly, why? Travel back to ancient Egypt and learn about the "Khufu Boat" which had not one metal nail in its construction, and uncover huge sailing vessels, dating from 3000 B.C., in Abydos near the Nile. Some of the most exciting discoveries that have been made include ancient warships, some massive enough to carry a crew of 7000.

Since the first time a rock was thrown in anger, mankind has endeavored to deliver larger, deadlier payloads further and faster. ANCIENT DISCOVERIES reveals how the science and technology of ballistics — a seemingly modern, cutting edge technology — actually dates back thousands of years to the ancient world. Using state of the art forensic techniques and the world's leading firearms experts, this groundbreaking show reveals the accuracy, power and range of ancient bullets, rockets and bombs.

Exploring the military innovations of ancient China, including gunpowder, flame throwers, rockets, automated crossbows, siege machines, and the grand scale of their battles

Egyptian monuments and great works of art still astound us today. But ANCIENT DISCOVERIES strives to reveal another surprising aspect of Egyptian life: their sophisticated weapons of war and their great might on the battlefield. A common perception of the Egyptians is of a cultured and civil people, yet there is fascinating evidence which reveals they were also an accomplished war-faring people. Visit the great tombs and search the ancient archives to discover the secrets to their military might. Discover how Ancient Egyptians pioneered weapons technology that is still put to use to this day, and experience their absolutely epic battles.

From the internal combustion engine to the artificial heart, the legacy of Al-Jazari, the 12th century Muslim inventor, is everywhere around us. It's no exaggeration to say he laid the technological foundation for modern life as we know it. From cranks to pumps, from water clocks to mechanized robots, Al-Jazira wasn't just years ahead of his time, he was centuries ahead. In this thorough ANCIENT DISCOVERIES examination of Al-Jazari's influence, modern reproductions of his greatest breakthroughs bring his genius to life. See his famous elephant-themed, fully-operational water clock and other stunning technological achievements.

ANCIENT DISCOVERIES digs for the roots of today's war machinery. Throughout history, military requirements — killing more effectively than the enemy — have driven the leading edge of technological innovation. Almost all technology on the planet today owes its origins to inventions driven by the imperatives of war. This episode surveys the ANCIENT DEATH MACHINES that have left a legacy on today's battlefield. From apocalyptic skyscraper siege machines to ancient landmines and flamethrowers which had the potential to extinguish hundreds of lives in minutes, ANCIENT DISCOVERIES puts the lethal tech of yesterday to the test.

Citizens of ancient Tyre use fire ships against Alexander the Great's besieging fleet; Roman Emperor Nero builds a death yacht to kill his own mother; a 15th-century weapon designed to pierce enemy hulls; ancient paddle-wheel boat.

The master shipbuilders of the Far East created the most deadly warships of ancient times in their quest for supremacy of the seas. Uncover the extraordinary ingenuity of the ancient engineers whose innovations would take shipbuilding to new heights and create some of the largest and most fearsome navies of the ancient world.

Long before Wall Street and Broadway, before even the Dutch, New York was a special place. It's unique topography and resources made it an ideal settlement and so its history stretches far back before the arrival of Europeans. ANCIENT DISCOVERIES journeys back in time to experience the Big Apple when it was still the "Island of Many Hills." While New York's towering skyline and world-leading technology have made it the ultimate modern city, breathtaking new discoveries reveal that the blueprints for this megalopolis were in fact laid thousands of years ago. Now, through the wonders of CGI and dramatic reenactment, you can see first-hand how people have been "making it there" for thousands of years. Witness brutal blood sports staged in ancient Madison Square Gardens. And mark the passage of time — as if in Times Square on New Year's Eve — with a gigantic Neolithic calendar.

With so many gods to choose from and so many temples vying for the average worshiper's fidelity, Ancient Greece and Rome was a buyer's market for religions. Priests were desperate to demonstrate the supremacy of their particular god and his or her personal involvement in their temple. To that end, Wonders of the Ancient World were constructed, iron chariots were suspended in mid-air, and automatic soap dispensers were installed.