A unique collection of gilded age mechanical pianos.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

The world's only museum devoted to the wonders of fluorescence.

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

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

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

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

This basement museum explores the art and artistry of fascism.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

The spectacular history of spectacles on display.

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

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

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

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

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

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

A collection of biblical memorabilia.

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

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

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

Amsterdam's Red Light District leaves little to the imagination.