The remains of a massive blast furnace in what was once one of the country's largest iron-producing regions.

This park pays homage to the region's rich industrial history of brick making.

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

Rare recess caves fill this unbelievably beautiful Ohio park.

This automated sculpture of two men peeing will spell out text messages with their micturition.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Every part of this unusual home is built into the sandstone rock.

Underneath this small church are 15,000 bones, arranged by an obsessive academic.

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

When the river dries up, these stones start talking.

This stone amphitheater was once part of Nazi Germany's plan to promote propaganda.

An ornate century-old elevator still connects the two halves of Bad Schandau.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

Artifacts fill the old headquarters of the hugely influential political movement to ban alcohol in the United States.