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

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Rome’s legendary peephole vista is also a former Crusader stronghold.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Pilgrimage site for star-crossed lovers.

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

The odd depiction of the Virgin Mary and baby Jesus is rooted in the Catholic Church's eradication of Catharism.

An alchemist's “magic door” stands in the middle of a Roman park.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

An enigmatic modern marker left next to a historic Roman site.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

These mansions date back to Chicago's days as a brewer's paradise.

Internationally known record store and purveyor of "dusties."

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

Collective made up of artists, musicians, and activists.

Opulent downtown movie theater now houses cars as an indoor parking garage.

The bones of an old zoo crumbling in the shadow of a new one.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.

This early 20th-century former train station’s unusual roof shape earned it a rather witchy name.

A Chicago Movie Palace Lost to Time.

A display of magnificent stained glass windows is the first exhibit of its kind.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.