Robertson County, Tennessee is known for one of the most famous supernatural legends in the U.S.

In June 2020, scientists discover Aguada Fenix, a monumental 3,000-year-old Maya structure, and uncover the secrets of this mysterious ancient monument.

From ancient China to British empires and beyond, discover how tea grew into the world’s favorite drink—second only to water in global consumption.

There are over 100 types of beer around the world, each with their own unique flavor profile and history. Dive into the history of beer, and learn once and for all what exactly makes an ale different from a lager.

Dig into the truffle’s unique and mysterious biology to find out what makes them so rare and the limitations of farming them.

What would you do if a total stranger called claiming he owned the earliest photograph of a U.S. president?

Go back to a time before the invention of artificial light and experience a world petrified in the pitch of darkness...when fear ruled the night. Throughout the ages, real and imagined terror existed in the absence of light, and nighttime was anything but...

Discover the history of the Lincoln Memorial in Washington, D.C.—from its design and 1922 dedication to its role in civil rights history, including Marian Anderson’s concert and Martin Luther King Jr.’s “I Have a Dream” speech.

Discover the story of the Hoover Dam—an engineering marvel of the Great Depression. Learn how it tamed the Colorado River, powered the Southwest, created Lake Mead, and continues to face modern challenges.

Why do so many old wooden bridges have roofs? Was it weather protection, engineering, or just weird 1800s fashion?

A time capsule sealed and buried by Princess Diana in 1991 has been opened after 35 years.

Who is the Green Man… and why is he hiding in our churches? A face made of leaves. A mystery carved into sacred stone. Some say he’s a god. Others, a warning. But all agree—he's hiding a secret no one can quite explain.

Dr. Eleanor Janega visits the ruins of Byland Abbey to explore some of the most terrifying stories to survive the medieval period.

Professor Simon Schaffer presents a documentary telling the story of automata, extraordinary clockwork machines designed hundreds of years ago to mimic and recreate life.

Discover what musicians mean by a “little ditty.” Learn its origins, why it’s used in songs, and explore famous examples from The Beatles to John Mellencamp.