The 20-mile causeway that separates the Netherlands from the sea.

Atop this former dutch railway office sits an interstellar work of art.

Where lovers tie birch branches into long-lived knots.

The history of sea-faring refuse and disaster is on cramped display in this Netherlands folk museum.

Mosaics created from 11 million cigar bands.

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

A giant floating rubber duck-bunny painted with a different design every year.

This colorfully-painted tunnel links two distinct parts of a historic neighborhood.

'The Letters of Utrecht' lays out a ribbon of poetry one letter at a time, with no final verse in sight.

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

Built by crowdsourcing, this wooden foot bridge saved a part of Rotterdam that was languishing in wait of city funding.

A set of seven houses, each built in a style that represents a European country.

This vast collection of smoking pipes from across the world spans centuries.

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

Remarkably preserved body discovered in a peat bog.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

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

Home to the world's oldest functioning orrery.

This bronze statue of Martin Luther King was placed in the park without permission.

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

The largest flower auction house in the world.

A preserved building where the dead were once watched for signs of life.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

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