A farm turned upside down.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

The facade of this bank has changed little over the centuries, including its unique welcome sign.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Amsterdam's former hotspot for public executions and dissections.

The former headquarters of history's oldest megacorporation.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

The history and future of cannabis.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

The attic of a four-century-old canal house hides a clandestine church.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

In 1988, jazz legend Chet Baker fell to his death from a window of this hotel facing Amsterdam Centraal.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

A centuries-old quest to create artificial life is alive and well in the French town of Limoux.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

A strange rock formation with numerous legends trying to explain it.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

This enchanting mountain plateau celebrates spooky local folklore.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

Beloved children's TV characters freckle the German city's streets.