Hidden beneath the streets of London is a secret subway that only carried mail.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

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

A celebrated bandstand at the center of what was once the worst slum in London.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Where's a guy to go after a long, hard day at work?

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

Ancient human remains unearthed around the iconic monument.

Famously misunderstood wonder of the ancient world

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

A tree that defies gravity grows in an ancient ruin.

Virgil's many-mouthed gateway to the underworld.

Italy's third-largest Roman arena gives a peek into the underground operations beneath the ancient spectacles.

A sulfuric hellscape in southern Italy.

Ancient snack bar of the Roman Empire re-opened.

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

Charnel house at the foot of Mount Sinai.

Ozymandias’ time-keeping temple.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Tropical paradise strewn with hundreds of World War II wrecks.

An incarceration museum on the spot of possibly the oldest prison in England.