Explore the revolutionary engineering behind Paris's iconic landmark. Completed in 1889, the iron tower smashed the record for the tallest structure on Earth, ushering in a new age of global construction that reached for the skies.

Journey to Florence to discover how Leonardo da Vinci used science, from human dissections to innovative painting techniques, to create his legendary artwork. Learn why Mona Lisa's smile is so captivating - and what it took to create it.

Journey to Florence to discover how Leonardo da Vinci used science, from human dissections to innovative painting techniques, to create his legendary artwork. Learn why Mona Lisa's smile is so captivating - and what it took to create it.

Journey to Florence to discover how Leonardo da Vinci used science, from human dissections to innovative painting techniques, to create his legendary artwork. Learn why Mona Lisa's smile is so captivating - and what it took to create it.

Journey to Florence to discover how Leonardo da Vinci used science, from human dissections to innovative painting techniques, to create his legendary artwork. Learn why Mona Lisa's smile is so captivating - and what it took to create it.

Journey to Florence to discover how Leonardo da Vinci used science, from human dissections to innovative painting techniques, to create his legendary artwork. Learn why Mona Lisa's smile is so captivating - and what it took to create it.

Where did humans come from, and what makes us unique? Discover the remarkable origins of Homo sapiens, and the crucial moments of innovation, communication, and ritual that set us on our path.

Where did humans come from, and what makes us unique? Discover the remarkable origins of Homo sapiens, and the crucial moments of innovation, communication, and ritual that set us on our path.

Where did humans come from, and what makes us unique? Discover the remarkable origins of Homo sapiens, and the crucial moments of innovation, communication, and ritual that set us on our path.

Follow Homo Sapiens as they venture across the world, farther than any other human species. See how they invented new tools to thrive in challenging environments - and meet the mysterious hobbit-like humans they may have encountered along the way.

Follow Homo Sapiens as they venture across the world, farther than any other human species. See how they invented new tools to thrive in challenging environments - and meet the mysterious hobbit-like humans they may have encountered along the way.

Follow Homo Sapiens as they venture across the world, farther than any other human species. See how they invented new tools to thrive in challenging environments - and meet the mysterious hobbit-like humans they may have encountered along the way.

Discover how Homo sapiens outlasted Neanderthals - and how they helped make us who we are today.

Discover how Homo sapiens outlasted Neanderthals - and how they helped make us who we are today.

Follow ancient humans' perilous journey into the Americas, where a frigid Ice Age landscape, mammoths, and other fearsome beasts tested their resilience.

Follow ancient humans' perilous journey into the Americas, where a frigid Ice Age landscape, mammoths, and other fearsome beasts tested their resilience.

Explore how the rise of agriculture and writing leads to an explosion in the human population.

Explore how the rise of agriculture and writing leads to an explosion in the human population.

Archaeologists investigate dozens of strange Stone Age megastructures in the Arabian desert. They're so big that their true form is visible only from the air, yet these giant structures were built by a mysterious people 9000 years ago.

Archaeologists investigate dozens of strange Stone Age megastructures in the Arabian desert. They're so big that their true form is visible only from the air, yet these giant structures were built by a mysterious people 9000 years ago.

In September 2024, Hurricane Helene dumped 14 inches of rain on North Carolina, triggering flash floods and killing more than 100 people. Why are these floods on the rise around the world-even in places thousands of feet above sea level?