A 12,000-year-old bog boasting rare plants and fauna.

A New Hampshire grave with a grudge.

This large cemetery is known as the museum of granite sculptures.

137 graves holding New England's earliest residents.

This young woman's tombstone names her murderer, who is buried in the same cemetery.

The gravestones in this historic cemetery are carved with mysterious faces.

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

Bell tower juts out from a village buried under a lake.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

Dubbed "Wistom" by locals, this abandoned factory is an urban explorer's dream.

A hidden art gallery in an abandoned Warsaw fort.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

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

This once-majestic, now-abandoned Victorian castle has seen better days.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

A magnificent, iconic stone tower in the Scottish Highlands.

One man spent 10 years building a spectacular section of road because no one else would.

These fantastically named natural pools look like something out of a Scottish myth.

A moody and picturesque riverside ruin overgrown with vegetation.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

World's largest collection of serial killer artwork and other macabre exhibits.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.