A deadly—and growing—global weather phenomenon mystifies scientists.

You share a trait with every single human who's ever lived – but no other animal on Earth has it. It's not your big brain, or your opposable thumbs... it's actually this little shelf on your face that we call a chin. And here's the thing: we're not total...

They paid only $27.50 for it from a London bookseller in 1946. It’s just the seventh known copy remaining in the world.

Where would we be without the world’s alphabets? Writing has played a vital role in the development and expansion of cultures throughout history. But researchers are only now uncovering the origin story to our own alphabet. From the shape of the letter A...

Mysterious bodies are found under one of the world’s most famous cathedrals.

How has China’s magnificent Forbidden City withstood centuries of earthquakes? (Aired October 18, 2017)

In central China, a vast underground mausoleum conceals a life-size terracotta army of cavalry, infantry, horses, chariots, weapons, administrators, acrobats, and musicians, all built to serve China's first emperor, Qin Shi Huang Di, in the afterlife.

In the shadow of Italy’s Vesuvius, a lesser-known volcano rumbles: Campi Flegrei. An eruption could endanger the millions of residents of the city of Naples. Scientists gain new insights into what happened in nearby Pompeii, and dig into the unique geolog...

Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.

New evidence reveals the real story of Easter Island and the ancient builders of its iconic stone heads.

Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.

Experience the colossal geologic forces that shaped our continent over billions of years.

Discover the science behind Leonardo da Vinci's masterpieces—and Mona Lisa's iconic smile.

Investigate one of the most powerful volcanic eruptions in recorded history.

Rising seas threaten the survival of Venice. Can innovative engineering projects save it?