Hidden within this iconic mountain are a set of World War II bunkers once used by German forces.

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

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

Rome's ancient Etruscan rival, now a park full of ruins.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

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

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

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

Jesus' footprints and the first catacombs in the world.

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

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Catch a scenic view of Warsaw's Old Town from the top of a centuries-old dumping ground.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

These traffic lights celebrate the 100 year anniversary of the women's suffrage movement in Lithuania.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

The Guardian of Tallinn.

The statue of a legendary giant who carried Christ and shouldered the world's sins.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

The reconstruction of this prominent building fulfilled a long-written command.

A black cat protests the City Guild in Riga's Old Town.