One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

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

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

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

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

2300-year-old Roman road connecting the empire.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Ancient snack bar of the Roman Empire re-opened.

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

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

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

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

Italian cave with exceptional acoustics and an unsavory history.

Moscow's imposing monument to the Space Age.

This massive monument honors the first human in space.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

World's largest bell sits on the grounds of the Kremlin in Moscow.