This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

This building features dozens of faces along its facade, although one is a bit chilling.

An amazing collection of wax anatomical models and terratological models.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

This curious, round temple is the oldest still-standing marble building in Rome.

Where layer cakes tower above one’s head and there is never a shortage of icing.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

The remains of an Aztec school and various intriguing artifacts lie below a modern cultural center.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

A naturally mummified 2,000-year-old man.

This London plaque marks the spot where David Bowie's famous alien made his debut.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.