Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.

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

The underground sanctuary of a mysterious ancient cult.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Rebuilt remains of a temple to Roman god Mithras.