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

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

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

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

Amsterdam's former hotspot for public executions and dissections.

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

The former headquarters of history's oldest megacorporation.

The history and future of cannabis.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Europe's official "zero-level," the equator of elevation.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

This cheese shop also houses a museum devoted to Dutch dairy.

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.

Where royalty waits in the height of luxury.

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

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.