A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

One part local history, 99 parts gruesome haunted house.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

Artwork tucked within the trees greets visitors with surreal sonic experiences.

A Nazi concentration camp and Anne Frank's place of death.

In this German city center, the streets have no names.

A unique look into the bowels of a century-old funicular.

It's good luck to be mocked by this monkey.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

A unique bridge with an equally unique view.

The fairy tale castle of the "fairy-tale king."

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

A church of bones, decorated with 40,000 human skeletons.

Enormous sandstone towers loom within a Czech forest.

While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.

A famed artist's inspiring work of peace and tolerance.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

This natural "sea of stones" was once used by the Romans as a quarry.