A unique collection of gilded age mechanical pianos.

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

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Rejoice at Amsterdam's ‘pop temple,’ a former church reborn as a raucous music venue.

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

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

Amsterdam's former hotspot for public executions and dissections.

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

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

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This historic hotel invented the chocolate brownie.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

The best place in the world to buy tinned fish.

One of the smallest bookstores on the planet.

One man's remarkable private collection of art from around the world.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Elaborate tile work in this railway station tells the story of Portugal.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Legends surround this jagged rock formation in the New Mexico desert.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

An homage to everyone's favorite prehistoric cartoon family.

Ancient pueblos built into the base of a natural canyon wall.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.