A true Valhalla for cactus and succulent lovers.

Elegant marble and old vaults fill this historic Dutch bank turned office space.

Rotterdammers' dirty minds gave this santa a dirty nickname and cursed it to a life of wandering.

A statue of the second-tallest Dutchman in history.

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

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

Strange secondhand shop showcasing taxidermy and oddies

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

A miniature city, once ruled by the Queen of the Netherlands.

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

The largest 19th century panorama in the world still in-situ.

A seven-century-old jail tells a not-so-pleasant history of crime and punishment.

A retail shop has preserved the 17th-century food cellar from the old building it now occupies.

One of the great math minds of the 17th century is underfoot in this 900 year old Dutch church.

A massive explosion that leveled hundreds of buildings in the city of Leiden is remembered by a waterside plaque.

An ancient Egyptian temple sits within a modern European museum.

One of the Leiden's oldest pubs is also the birthplace of the Heineken star.

This historic Dutch newspaper building is covered with media-themed details—and one unrelated oddity.

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

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.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

A former plague hospital turned medical museum.

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