There are only two accepted portraits of William Shakespeare that are considered "official," but a portrait that's been hanging over a mantlepiece for the last 50 years could be the third. It could be worth as much as $200 million…if it is genuine. 

A mysterious ancient city lies hidden in the mountains of Sichuan. A kingdom that was consigned to oblivion for thousands of years until the chance discovery of a jade artefact in 1929. Since that first find, more than 10,000 unusual items have been unearthed, including curiously shaped bronze heads and masks covered in gold foil. These objects may be as archaeologically important as the Terracotta Army of Xi'an, and experts think that this may be the capital of the ancient Shu kingdom.

"Chasing the Plague" looks at the societal impacts of the bubonic plague on medieval Europe as scientists today track down the earliest known bubonic plague victims. They are studying the virus in hopes of preventing future outbreaks. What happens when a third of a continent's population is wiped out?

On February 8, 2023, a sensational story came out in the news: three codebreaking enthusiasts announced that after a year of dedication and collaborative efforts, they finally had succeeded in decoding the secret correspondence of one of the most tragic characters in European history: Mary, Queen of Scots. Composed of 57 letters written in a code consisting of at least 150,000 different symbols, the correspondence between Mary and the French ambassador to England details Mary's efforts to free herself from imprisonment and gain advantage over her rival, Queen Elizabeth. After four centuries, Mary's urgent pleas can now be revealed.

Just off the coast of Alexandria, 23 feet below the surface of the Mediterranean, lay the remnants of a mysterious ancient monument. For more than 30 years, the French explorer Franck Goddio has been working under a shroud of secrecy, hoping to confirm these remains as the temple of Cleopatra. If true, this unprecedented discovery could reveal vital new information about Cleopatra's reign and her connection with the goddess Isis.

The Colosseum was the jewel of ancient Rome, wowing vast crowds with its extraordinary spectacles. It pushed the boundaries of technology and exhibited Rome's immense wealth and influence. But just as the structure embodied Rome's power, so too did it reflect the empire's downfall. 

Historian Jonathan Petropoulos investigates former Nazi art dealer Bruno Lohse's role in post-war America. Lohse established relationships with curators at some of the nation's most important cultural institutions and became an invisible hand, dealing in looted art – even as the families of the original owners pursued the restitution of works rightfully theirs.

Historian Jonathan Petropoulos investigates the life of former Nazi art dealer Bruno Lohse and his role in the Nazi looting operation, interviewing Lohse himself, as well as curators, art investigators, Lohse's associates, and descendants of the victims of Nazi art theft. He became Hermann Göring's personal collector in Paris, tasked with finding the most desirable works of art the Nazis stole from Jews. Post-war, Lohse spent a brief time in prison but then returned to Munich and resumed his career as a dealer, more often than not trading in art looted during World War II. With a look at stunning masterpieces and a deep archive of personal letters, Plunderer reveals the dark underbelly of the international art world.

The discovery of gold and silver artifacts in Laos, dating to the early days of the Khmer Empire, leads scientists to investigate how the priceless objects were made and where they might have originated. On their journey, they retrace the steps of the ancient kings and explore the sacred landscape around Vat Phou to learn more about this ancient civilization.

Angkor was the capital of the Khmer Empire, which controlled much of the region between the 9th and 15th centuries. The stunning accomplishments of Angkor's great kings are evident, but the period preceding the foundation of their great city is shrouded in mystery. The discovery of an incredible hoard of stunning artifacts provides surprising new clues about this early Khmer society.

In 2022, a terrifying discovery: a female skeleton dating from 1650, buried with a sickle across her neck and giant padlock on her toe — double protection to keep her from rising from the dead. All the evidence points to her being buried as a vampire... and she's not alone, with more than 50 deviant burials around her. Who was she, and what did these burial rituals mean?

Originally a supply depot for Union forces in Kentucky, Camp Nelson became the site where 10,000 Black soldiers trained in the Civil War. But in the war's last months, these formerly enslaved soldiers were brutally attacked by bitter Southerners. Their remains have never been found, and a team is dedicated to finding them to memorialize their service and heroism. Learn about the military base where these soldiers and thousands got their freedom papers.

Making headlines around the world, Brent Seales and his team of computer scientists set out on a mission to read the 2,000-year-old carbonized scrolls found in the remains of a villa in Herculaneum. Mt. Vesuvius's eruption in 79 AD transformed the papyri, fusing together the layers of the scrolls and making them impossible to read. Can particle physics and AI finally reveal what the scrolls say?

Maria Anna Mozart was a musical prodigy just like her younger brother Wolfgang. Although the children toured Europe together, once Maria Anna came of age, she was left behind while her brother became a star. But controversial new evidence suggests she may have contributed to her brother's earliest works while a global search for her compositions continues.

A moving story of a people reclaiming their cultural heritage after an occupying force tried to erase it. Priceless artifacts from the Assyrian Empire were destroyed during the Isis occupation of Mosul. Now, a team of archaeologists is dedicated to finding pieces that survived. One possible discovery: the location of the Hanging Gardens of Babylon.

Find out if one of history's greatest cold cases—the imprisonment of two princes in the Tower of London—can finally be solved. Their disappearance led to centuries of mystery and speculation. Were the boys murdered by their uncle, the notorious King Richard III? Or was it a massive conspiracy to hide the truth?

Uncover what happens when archaeologists study a skeleton found with an iron nail through its heel bone, suggesting the person was the victim of crucifixion in Roman-occupied Britain. Only one other skeleton with evidence of crucifixion has ever been found in the world. Who was he? What was life in Roman Britain like? And why did he receive such a gruesome punishment?

Find out about the race to build Paris' most famous landmark when two men vied to be the first to build a monument 1,000 feet tall. See how one man's vision transformed the Paris skyline, making the Eiffel Tower a global icon. Dramatic recreations, official renderings and personal correspondence tell the story.

Discover the world of dinosaur fossil collecting, a controversial hobby with a booming market. Hear perspectives on the fossil trade from private collectors, paleontologists, and others, as "Big John"—the largest Triceratops fossil ever found—is assembled in Italy and auctioned in France.

Uncover the sunken remains of a 4th-century basilica in Turkey unexpectedly discovered on a survey flight. Submerged beneath the waters of Lake Iznik for hundreds of years, the church could reveal crucial insights into the early days of Christianity. Join a team of international researchers as they travel back through time—and grapple with Turkey's many earthquakes, which could sink the structure deeper at any moment.