This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

This Costa Rican topiary park is a surreal garden of unearthly delights.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

Abortion, prohibition, religion, war, and fear all play a part in the history of this idiosyncratic Pacifica castle.

A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

The ruins of this Brazilian island prison still bear the scars of the bloody rebellion that closed it down.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

Mysterious meeting place for UFO hunters near Area 51.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

Thirteen sculptures in central Moscow graphically depicting vices of the modern world.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

The remains of a paranoid inventor's hidden workshop lie in beautiful ruins amidst a Canadian park.

An art world insider finds himself battling for his artistic home.

A 16th-century horror show built in a lovely Italian garden.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

The most decorated dog of World War I is preserved in the Smithsonian.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.