This artificial ring island was built to hold cubic tons of polluted dirt.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

An ingenious Dutch land art project uses grass ridges to cut airport noise pollution in half.

An ancient Egyptian temple sits within a modern European museum.

Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

The birthplace of most all of Europe's space missions is here on the Dutch coast.

A market built atop boats is one of the few floating holiday markets in Europe.

Yup, that's a 330-foot yacht passing over the highway.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

Science meets wall art to highlight the beauty of famous mathematical equations.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

A unique collection of gilded age mechanical pianos.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

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.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

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

A former plague hospital turned medical museum.

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.

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