A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

A small chapel celebrating the spiritual bond between dogs and humans.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

1513 Turkish world map, full of European state secrets and snarky commentary.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

A rather vulgar example of the transition from Latin to the Italian vernacular.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

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

A Nesting Doll of Churches.

Architectural monsters are devouring this palace's every door and window.

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

The final resting place of the poets Shelley and Keats.

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

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

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Architectureal fantasy quarter of Rome.

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

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

This demon atop the Notre-Dame de Paris looks utterly bored.

What looks like a normal building is really a hollow facade hiding a subway vent.