The loneliest island in New York.

The resting place for anonymous victims of the Danube's dark waters.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

Gold Rush-era tombstones line the park's paths.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

Where there's quartz, there must be gold. Thus is the story of the mines of Julian, and the titillating times of the Gold Rush.

This ghost town in Belgium will lose its street art when it ceases to exist.

Concrete strongholds stand guard over the Golden Gate.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

A toxic ghost town sitting atop a massive coal fire.

This secret cemetery where no flag is allowed to fly holds the bodies of American soldiers convicted of heinous crimes during WWII.

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

The world's longest wildlife overpass provides Hilversum's critters with a safe alternative to trying their luck on the roadway.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

A Wild West jailhouse that slid down the mountainside.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

A cemetery for only coon hounds in northwest Alabama.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This picturesque island graveyard is the final resting place of dozens of notorious pirates.

New York City's smallest piece of private property.