Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

Colorful and chaotic stacked hotel in North Holland.

A beautiful maze marks where three countries meet.

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

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

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

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

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

A floating cat sanctuary on an Amsterdam canal.

Cat art as far as the eye can see.

A curious collection dedicated to human and animal anatomy and pathology.

Museum preserving torture methods from the past.

This sprawling Jewish cemetery is one of the largest in Europe.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

A tiny chapel clings to a precipice above Germany’s gemstone capital.

A preserved Nazi labor camp now has a Holocaust museum on site and memorials to the thousands that died while imprisoned at the camp.

The largest brick bridge in the world.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

Twisted buildings adorn the banks of the Rhine river.