There are only two accepted representations of William Shakespeare that are considered “official” – but could a portrait that has been hanging over a family’s mantelpiece for the last 50 years be the third? British window washer Steven Wadlow, whose father bought the portrait in the 1960s, is on the hunt to prove the painting is indeed genuine. If so, it could be worth as much as $200 million.

What if women were hidden among the ranks of Ancient Rome’s fearsome gladiators? A group of experts searches for evidence to prove women once fought in the arena just like men. Combining history, archaeology, and forensic investigation, journey across Europe in a quest for answers. If a female gladiator's existence can be proven definitively, what can we learn about their lives?

Can the stories about King Arthur be proven true? Was the legendary court of Camelot a real place? Join Prof. Mark Horton on his journey across Britain to prove real events and places inspired the chivalric myths. Horton scours medieval texts and archaeological sites for a new understanding of the Arthurian legends and what Britain was like after the Romans left in the fifth century.

A mysterious ancient city lies hidden in the mountains of Sichuan—remnants of a kingdom consigned to oblivion for thousands of years, until the chance discovery of a jade artifact in 1986. More than 10,000 unusual items have been found at the site which experts believe may be as archaeologically important as the Terracotta Army of Xi'an. Could this be the capital of the ancient Shu kingdom?