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

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

In the Netherlands, one of the world's largest private car collections can be found.

This former hydraulic laboratory is now a woodland dotted with old engineering models.

Hop aboard a charming bog train to explore this rare open-air museum of peat.

An ancient Egyptian temple sits within a modern European museum.

This steel frame is a skeletal mirage of a lost 16th-century stone building.

Lombardy poplars planted to imitate the size and shape of the Cathedral of Notre-Dame de Reims.

A 1:20 scale piece of the Netherlands commissioned by a queen lets visitors take a stroll as giants.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

The former headquarters of history's oldest megacorporation.

This medieval castle was painted pink as part of a now-abandoned children's theme park.

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

Its town washed away centuries ago, this lonely tower by the sea tells the tale of a mermaid and a curse.

A monument hidden in the woods built in 1938 as a getaway for a Dutch museum curator.

A luxury hotel housed in a former 15th century Gothic church.

Unchanged for centuries, this medieval library keeps its books in chains.

The last of Amsterdam's original sea level markers remaining in place.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

This historical Netherlands fortress still bears the marks of its single siege.

Pull up and have a drink at a museum filled with hundreds of years worth of shipwreck artifacts.

Tucked away in the Leiden city hall are a group of works by famed artist MC Escher.