A volcanic fissure over two miles long and up to 70 feet deep.

An endless sea of white conical domes.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Only intact Ichthyosaur skeleton in the United States.

The earliest known map to show America, discovered by accident at a Paris bookshop.

Devastated landscape used for hundreds of years by the Romans as their primary mining site.

Giant wheel of cheese marks a dairying village.

A glittering South Asian anomaly in a wealthy Los Angeles suburb.

This attraction was abandoned after the Chernobyl disaster.

"Would you like your sangria in an IV bag, or straight-up?"

The fantastic architectural models of a French traveler.

An ambiguous ambience emanates from this centuries old leprosy quarantine.

This was one of the first (and last) university-built and operated nuclear reactors.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

This small cemetery is all that remains of Atlanta's first Black communities.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

This collection of solar timekeepers includes the world's first digital sundial.

WWI hospital ship lost in a cyclone turns up on the coast of Fraser Island, where she remains rusted and forgotten.

An abandoned guano-mining city in the South Pacific.