Stroll the grounds built by murder, suicide, and dirty oil money at one of Hollywood's most filmed mansions.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

An inspired museum dedicated to the patron saint of enslaved people, inside the cloisters where he lived and died.

This old Estonian mine has been kept like a sprawling time capsule of the local shale industry.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

The tallest waterfall in the Netherlands is a lovely, stepped feature that is only 50 feet tall.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This historic lavatory leftover features two levels of defecation stations completely without context.

The villagers of the coldest inhabited place on Earth adjust to unique challenges presented by day-to-day living.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The second largest in the world, this massive underground void has its own subway.

Part ski resort, part modern art space, this lodge brings giant metal spiders and bloody doors to the Austrian Alps.

The remains of this ancient fortress atop a manmade hill look as though they were built into a volcano.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

A working miniature city designed to teach kids about safety and presumably city planning.

An abandoned saucer-shaped monument in the Bulgarian mountains.

Visible below the waves are memorials to the city's Gold Rush dead.

Erosion and time have created a naturally-formed water park.

An enormous concrete structure built over a nuclear crater.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

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