The world’s largest Masonic temple was saved by the White Stripes.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The shell of a medieval fortress offers commanding views of the area it once protected.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

300 years of pharmaceutical history on display.

A forgotten graveyard lost in the tangles of an overgrown garden.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

This Tibetan monastery has survived multiple attacks and is also a sky burial site.

Ever-growing collection of devils in art.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Lithuania's outdoor sculpture trail of wooden folk art.

This ancient jade mask depicting the Zapotec bat god was found in the ruins of the pyramids of Monte Alban.

Mysterious chains and iron stakes adorn this strange grave, with no explanation.

The final resting place of New England's last "vampire."

The graves of a Connecticut family thought to have been plagued by a vampire.

A once grand hotel now sits eerily abandoned in the Catalan countryside outside Barcelona.

This romantic, decaying 13th-century ruin on the edge of Sherwood Forest is reputedly one of England's most haunted places.

This 13th century castle is chock full of ghosts and impossibly rare cows.

What was once England's second-richest abbey is now a haunting ruin.