This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

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

A collection of objects supposedly singed by the hands of souls in purgatory.

2300-year-old Roman road connecting the empire.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

A plaque on the base of this statue holds a bewitching design.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The middle finger of modernity.

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

A medieval weapon rumored to have been used by the brilliant poet himself.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Secret refuge and museum of the Duke of Florence.

The oldest operating pharmacy in the world features 800-year-old recipes.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

The mummified relic of St. Antoninus.

This legendary dessert was served to Nobel laureates for decades.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.