Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

These ornate arches show how the course of the River Thames has changed.

A series of carved figures that scandalized British society.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

This five-star hotel was originally a swanky parking garage.

What started as a way to address damp basement walls turned into a house filled with intricate hand-carved designs.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The walls and streets of the ancient city are peppered with penises.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Five candy-colored villages on the Italian Riviera.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

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

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

The beloved beast's taxidermy remains sit in the Natural History Museum's cafe.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.