The Acropolis has overlooked Athens for thousands of years. Now scientists aim to reveal how it was built, what it looked like, and how it's still standing.

In Mexico, the lost city of Chichen Itza holds ancient secrets of a strange civilisation. How was it was built and how did human sacrifice shape it?

A medieval engineering marvel may house the remains of the Bible's Three Magi. Scientists and experts delve into the mysteries of this religious site.

Westminster Palace is one of the most iconic structures on the planet. What Victorian secrets and mysteries are hiding behind this famous landmark?

The Great Pyramid of Giza is one of the last surviving monuments of the ancient world. Scientists and archaeologists unlock the secrets of its construction.

The biggest man-made structure on Earth, the Great Wall of China, is one of its biggest mysteries. What are the secrets of one of history's greatest empires?

New finds explore the secrets of Tutankhamun's tomb. Experts reveal how his untimely death, calamitous burial, and an act of God made a minor king so iconic.

Giant pyramids at a site in Mexico reveal the secrets of a civilisation that vanished 1,400 years ago. Shocking new discoveries suggest human sacrifice.

New technology reveals the truth behind the largest temple ever built, Angkor Wat; experts uncover how it was constructed and why it was deserted.

Forensic evidence sheds new light on the history of the great Sphinx of Giza, revealing which pharaoh commissioned its construction, and why it was never finished.

New discoveries reveal the deepest secrets of the Stonehenge, showing how ancient magic, bizarre rituals, and brutal murder built this strange monument.

A castle in Scotland may be the home of King Arthur's Round Table. Can the discovery of a disfigured skeleton reveal its secrets and rewrite history?

Deciphering the secret Inca codes and deformed skeletons of the lost city of Machu Picchu, one of archaeology's biggest enigmas, to reveal its ultimate mystery.

Newly-found artifacts reveal dark secrets surrounding the Terracotta Army, including the soldiers' supernatural enemy and ancient China's violent origins.

The Egyptian site of Karnak was once the ancient world's largest religious complex; human remains tell the story of a new religion that changed Egypt.

Scientists reveal codes that tell a shocking story of power and betrayal in the Indian ode to love, challenging commonly-held beliefs about the Taj Mahal.

Archaeologists uncover the secret lives of the gladiators and make new discoveries that help explain the rise and sudden fall of the Roman Empire.

New technologies resurrect the ancient city of Petra, which has baffled experts for decades, and reveal why this civilization was suddenly abandoned.

The Inca capital of Cusco was said to be the site of untold gold and riches, and new discoveries at this mysterious site reveal the secrets behind this mighty empire's fall.

When a Viking fortress lost underground for over 1,000 years is discovered, experts investigate its buried treasures. What caused this civilization's demise?

At an ancient city lost in the Peruvian desert for 5,000 years, experts find signs of strange rituals. Was it the first civilization of the Americas?

The Statue of Liberty is the home to dark American mysteries. Now, experts are using the latest science and technology to reveal her secrets.

A mysterious ruined city in Greece is home to the mythical Labyrinth and the Minotaur. Its catastrophic downfall may have inspired the legend of Atlantis.

Attila the Hun was one of history's fiercest warriors, and new evidence reveals if his terror was responsible for the fall of Roman Empire

The statues of Easter Island were built by one of the world's strangest and most isolated civilizations. New evidence reveals why they were constructed.

New discoveries at Pompeii's last unexplored area reveal the dark secrets of the doomsday event that destroyed it, and recently unearthed mummies might help answer Pompeii's most enduring mystery: why it was built on an active volcano.

Egypt's strange Bent Pyramid is one of the world's most mysterious, ancient mega-structures; new discoveries help experts investigate its dark secret: if it was always intended to look so bizarre, or if something went catastrophically wrong.

A cutting-edge investigation into the sinking of the Titanic reveals new discoveries that might finally explain the mysteries of her last moments, and experts get closer to a shocking secret: if there was a way to save almost everyone on board.

For the first time, archaeologists use cutting-edge technology to discover what lies beneath China's Forbidden City, revealing the dark secrets of this mysterious mega-palace that have buried for nearly 600 years.

The city of Thebes was the religious centre of Egypt's New Kingdom. How did workers construct the largest religious site in the ancient world?

A ground-breaking experiment reveals how ancient Egyptians built the giant obelisks of Thebes; new discoveries at this holy site could explain why these mysterious marvels triggered the downfall of the pharaohs and the end of Egypt's golden age.

New discoveries at a strange prehistoric site reveal the dark secrets and rituals of the mysterious people who built the world's largest stone circle, three times bigger than Stonehenge, and just as enigmatic.

Deep in the jungle, the lost city of Tikal holds the dark secrets of the Maya; a new investigation uncovers how it grew into a megacity home to 100,000 people, and why it was mysteriously abandoned.

The discovery of strange giant stone heads in the Mexican jungle leads archaeologists to the lost capital city of the Olmec; new investigations reveal evidence that the secret knowledge of these mysterious people changed life in the Americas forever.

The treasures of Ramses II are found at Abu Simbel, a giant temple carved into a desert cliff over 3,000 years ago, and new discoveries at this marvel reveal the secrets of ancient Egypt's greatest pharaoh.

The Nazca Lines are mysterious symbols that have been carved into the Atacama Desert more than a thousand years ago. How and why were they created?

Alcatraz is one of the most famous prisons in the world. Experts investigate its remarkable engineering secrets and why it was so hard to escape from.

The 'Iceman' is the world's oldest and most perfectly preserved mummy. Cutting-edge forensic technology may unearth the mummy's darkest secrets.

The Emperor Nero built an astonishing palace in the heart of Rome. Now using cutting-edge technology, experts investigate if he burnt the city for the building.

The Lighthouse of Alexandria is one of the world's original Seven Wonders. Experts investigate its many secrets - did it hold a superweapon?

The Dead Sea Scrolls in Israel are the oldest biblical texts. New discoveries might finally reveal the hidden meaning behind these manuscripts.

The sunken town of Baiae remains frozen in time, lying on the seabed of the Bay of Naples. Now, marine archaeologists investigate its fascinating secrets.

Thermopylae was the site of an iconic ancient battle. Legend says that in 480BC, 300 Spartan warriors died there - experts reconstruct the lost battlefield.

Experts use cutting-edge technology to investigate one of the wonders of the modern world. They reveal mysteries hidden in its foundation.

Experts use cutting-edge technology to investigate a lost city buried in the Sahara. Archaeologists are uncovering the city's forgotten ruins and dark secrets.

When Pompeii was destroyed by an apocalyptic volcano, another town was destroyed, too - Herculaneum. It is one of history's most perfectly preserved towns.

The Roman Empire built Hadrian's Wall to guard its frontiers; new discoveries reveal who the Romans were trying to keep out with this 72-mile-long megastructure.

The underground bunker of Adolf Hitler is home to some of the greatest secrets of the Nazi regime. Experts use cutting-edge technology to uncover new evidence.

The Leaning Tower of Pisa is one of the world's most iconic buildings, but why does it lean? Investigators uncover the reasons for its tilt.

The infamous gunfight at the O.K. Corral only lasted 30 seconds. Now, experts use cutting-edge technology to uncover the mystery surrounding the event.

The Tower of Babel is one of the most famous stories of the Bible. Archaeologists use new technology to uncover how engineers could have built it.

Troy is the legendary lost city at the centre of the Trojan War, but its existence was never confirmed. New cutting-edge technology explores the ancient myth.

Mount Rushmore is one of North America's most iconic landmarks. Experts use cutting-edge technology to reveal what lies beneath the rock.

What caused the Nazi aircraft to explode into a giant ball of fire over New Jersey in 1937? Experts use cutting-edge technology to investigate the event.

Cutting-edge technology is helping experts investigate the Bermuda triangle. Using new techniques, they search for evidence of aliens on the ocean floor.

Pyramids in the deserts of Sudan are the ruins of a powerful lost civilisation that rivalled Egypt. However, why are the pyramids there and who built them?

Saqqara is the site of the first pyramid - the Step Pyramid of Djoser. Experts use cutting-edge technology to explore why the Egyptians built pyramids.

Archaeological investigations unearth the secrets of the long-lost city. New evidence reveals what Babylon looked like and what caused its downfall.

The World Trade Centre's iconic twin towers were an engineering marvel.

With special access to a hi-tech archaeological investigation, experts reveal why Egypt's Black Pyramid collapsed before its pharaoh was buried there.

A cutting-edge archaeological investigation uses hi-tech methods to scan the ocean floor in search of sunken sphinxes, temples, and shipwrecks.

New discoveries on a strange Mediterranean island might offer new clues in the hunt for Atlantis. Experts reveal the apocalyptic event that destroyed it.

New discoveries at the lost city of Jericho offer fresh evidence about the biblical battle that brought its impregnable walls down.

The Pantheon is a 2,000-year-old temple with a secret. Advanced archaeological methods and new evidence reveal why it was built and how it survived.

The ancient Roman city of Hierapolis is said to hide a secret portal to the underworld beneath its streets. Experts use pioneering technology to investigate.

King Midas and his golden touch is a famous tale in Greek mythology. Experts use advanced archaeological methods to delve into strange ancient mounds.

Venice was once a fearsome superpower. Scientists use pioneering acoustic imaging technology to discover its ancient foundations and reveal how it's still standing.

A prehistoric megastructure on the sands of an English shore could reveal lost mysteries of the Bronze Age. Experts uncover ancient rituals once performed here.

The Tower of London is shrouded in a mysterious, grisly past. Experts use pioneering archaeological methods to examine how it became an infamous prison.

Experts use high-tech underwater archaeology to explore the world’s oldest sunken city and reveal new discoveries about one of the first great empires.

Deep in the Iraqi desert, the world's only ziggurat towers over the remains of the first civilization ever known in human history; armed with pioneering satellite imagery, experts investigate the dark mysteries behind this massive, ancient structure.

Experts use drone technology to explore the tunnels hidden below an Egyptian pyramid for the very first time. Plus, forensics uncover a pharaoh’s secrets.

Experts use innovative geophysical analysis to solve the mysteries of the towering Mount Nemrut in Turkey. Can they uncover the reason for its destruction?

The ancient city of Persepolis was once the greatest and richest city on Earth. Using forensic analysis, experts discover how the Persians rose to power.

The Valley of the Queens is a vast necropolis near the Valley of the Kings concealing some of Egypt's most miraculous tombs and powerful women; now, investigators use cutting-edge tech to explore lost tunnels and uncover the enigmatic secrets behind these ancient pharaohs.

Deep in the Iraqi desert, investigators use new technology to unearth an ancient city like no other. What secrets lie in the sacred city of Nippur?

The powerful city of Palenque is home to mysterious temples that harbour secrets about the Maya queens. Experts investigate using pioneering technology.

Experts use innovative technology to investigate why pharaohs and emperors built a colossal temple monument on a mysterious Egyptian island.

The ancient city of Abydos contains Egyptian tombs and a buried temple linked to a mysterious death cult. Archaeologists use drone imaging to investigate.

The clifftop ruins of Tintagel Castle are believed to be King Arthur's birthplace. Experts use cutting-edge tech to unlock its secrets.

Archaeologists use pioneering technology to investigate the ancient city of Samarra, revealing its astonishing rise to power - and monumental downfall.

Archaeologists uncover the engineering secrets behind lost coliseums of Rome to reveal the truth behind the ancient Roman empire.

Stunning 'blow apart' CGI animation and the latest archaeological investigations reveal how the most iconic buildings of the ancient worlds were built, stone by stone.