The place where World War I began.

A war-torn Olympic relic is being overtaken by graffiti and nature.

Pompeii's less famous neighbor is still revealing her secrets.

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

Ancient snack bar of the Roman Empire re-opened.

Crispy, cheesy rice balls—the Roman answer to arancini—take center stage here.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

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

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

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

A forgotten "city of water" underneath the famous Trevi district.

2300-year-old Roman road connecting the empire.

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

This historic bridge connects Whidbey Island to Fidalgo Island across whirlpool-filled waters.

A museum dedicated to exhibiting remarkable outsider art.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

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

Legend holds that this knife serves as a chilling reminder of the deadly rivalry between two local builder brothers.

Seven dragon statues—including one that breathes real fire—are scattered throughout the streets of Krakow.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

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

Inside this Krakow church, an explosion of psychedelic color.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

This hidden collection of everyday objects illustrates life within communist Poland.