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

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

Home to the world's oldest functioning orrery.

A historic observatory now an astronomy museum beautifully situated at the moat of the Middle Age city centre.

This 1920s Amsterdam neighborhood was built as a giant experiment in concrete construction.

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

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

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

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

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

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

“And the Lord said unto Johan, build for thee an ark for the end of the world is approaching.”

Mosaics created from 11 million cigar bands.

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

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

An idyllic hotel that gave its name to a supposed shadow government.

The world's largest collection of ships in bottles.

A trio of red, white, and blue stones embedded in the streets of Leiden are markers of medieval territory and law.

The place where Czar Peter I of Russia resided in 1697 during his Grand Embassy.

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

The gargoyles and grotesques of the 21st century are here—22 emoji built into a new building in the Netherlands.

This small electronics museum is full of whirring, humming, clicking ephemera.

The struggle of a small Dutch island against the sea.

The bridges portrayed on EU currency aren't fictional anymore.