One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

David Sedaris called it "The greatest shop in the world."

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

Go inside to really appreciate this 500-year-old technological masterpiece.

The largest and most famous wax anatomical collection anywhere in the world.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

The final resting place of the poets Shelley and Keats.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Thousands of well-dressed mummies below a monastery.

Stalactites and stalagmites in a beautifully lit cave.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Renaissance villa and gardens complete with a tormented colossus.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A submerged archeological park still holds the wonders of a Roman Sodom.

Architectureal fantasy quarter of Rome.

This Funeral Hearse Museum represents the finest in cadaver transportation.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

This cemetery features modernist statues as strange as its name.

This semi-secret storybook hedge maze is also the oldest garden in the city.

The mystic whose incorrupt corpse still attracts the faithful.

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