The Black Death of 1348 was a devastating event, wiping out half the population of Britain. And in churches like this one, drawings on the wall provide a haunting visual record of the scale of the tragedy.

This Church Has an Eerie Visual Record of the Black Death (2:53)

In the 19th century, there was a watermill almost every mile of the river, such was the huge demand for flour and bread. Today, Eastnor castle’s own mill is still operational–an important piece of local history.

This British Castle Still Has a Functioning Flour Mill (3:39)

Boston’s iconic lighthouse, the Boston Light, is managed by a single person: Sally Snowman. She is the 70th keeper of the lighthouse since it was built over 300 years ago.

This Woman Manages America's Oldest Lighthouse (2:59)

Hadrian’s Wall was a 73 mile barrier stretching from coast to coast, splitting the warlike north of Britain from the more docile south. It was the Roman Empire’s way of imposing peace in a hostile land

The Roman Wall That Split Britain Into Two Parts (3:35)

In the late 1300s, tea was introduced to Japan from mainland China, transported in delicate jars. Over the years, as drinking tea became a prized activity in Japan, so too did the jars in which it was stored

How Tea Drinking Became an Important Part of Japanese Culture (3:05)

The Leopard Rocks—giant boulders spread out over hundreds of square miles—impress. But it’s the area's wildlife that really catches the eye: from leopards to peacocks to gray langurs.

The Wildlife at Leopard Rocks Is as Impressive as the Terrain (1:24)

In 1963, an Iceland volcano by the name of Surtsey began an eruption that would last for four years. To scientists, it’s become an invaluable opportunity to observe an environment closely resembling that of early Earth.

This Icelandic Volcano Recreates Early Conditions on Earth (3:42)

The few records that exist of the Roman city of Neapolis mention that it was once a major commercial port. But no evidence of a harbor was ever found—until a major storm struck in 2013.

It Took a Storm to Lift the Cover on This Ancient Roman City (3:51)

At Kafue National Park, one cheetah has adapted his hunting strategy to find more prey: He hunts in the forest, instead of the open plains. This flexibility is good news for the future of Africa’s most endangered big cat.