The grave of the famous painter is marked by a simple stone in the ground.

The hands on this clock appear to be created by two workers sweeping debris into careful positions.

The largest collection of the iconic wooden shoe in the world.

The Siege of Naarden ended in 1814, but the cannonballs embedded in the town church remain.

This large open-air museum showcases the ordinary lives of the people of the Netherlands and pre-industrial crafts and practices.

The remnants of a WWI naval mine that once terrorized the country now decorates a street.

Underground attraction offering tours of the foundational ruins of a church nave that collapsed in 1674.

For years, the remains of this ancient Roman fortress were hidden under an orchard.

This Dutch windmill has its roots in an American invention.

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

This vast World War II defense line was the site of a fierce battle.

The house of physicists Paul Ehrenfest was also a temporary dwelling and study for his good friend Albert Einstein.

For over 100 years the most important physicists in the world have autographed this university wall.

These lights mark the area of Rotterdam that was bombed and burned in 1940.

This public toilet built in the famous Amsterdam School architectural style is a Dutch national monument.

Preserving the research tools, unexpected inventions, and odd collections of generations of college professors.

A striking memorial to the Jews of Leiden who were murdered during World War II is scattered throughout the city.

Once the world's biggest telescope, it was later used as a coat hanger by a famous Dutch astronomer.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

Stained-glass windows inspired by Vincent van Gogh's paintings decorate this church in the town where the artist's career began.

The location of the world's first telescope demonstration.

Watch the local Netherlands birds from inside this giant eco-egg.

Graffiti covers the walls of a room where university students through the centuries have waited nervously to defend their theses.

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