A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

A dead saint, a deadly poison, and a mysterious holy ooze.

An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

The mummified relics of an American missionary.

Saintly bones pressed into a wax effigy of a Catholic superstar.

The mysterious remains of a martyred teenage saint are venerated inside a small country chapel.

This collection of lurid religious statues tell the tales of a saint who stood down the devil.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

Perhaps the most beautiful of preserved saints, with a little help from Paris.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

The decaying ruins of Wales' first asylum for the mentally ill.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.

Fountain where visitors can earn a license to be mad.

The venerated body of a 12th century saint is celebrated each year with the 'Race of the Candles.'

The yawning maw of this pagan visage is said to bite off the hands of liars.

The mystic whose incorrupt corpse still attracts the faithful.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

The final resting place of a famous 19th-century murder victim whose identity is still a mystery.

Julia Buccola Petta's body was peculiarly well-preserved when it was exhumed six years after her death.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

This wooded grove of beautiful hand-built stone grottos is a hidden gem within a shuttered Franciscan monastery.

The severed head of a 17th-century Irish martyr lies within an intricate golden shrine.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.