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

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

This 11th-century castle sits so low you can't see it behind the surrounding buildings.

Where lovers tie birch branches into long-lived knots.

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

Colorful and chaotic stacked hotel in North Holland.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

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

A beautifully eclectic mix of architectural styles.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

The attic of a four-century-old canal house hides a clandestine church.

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

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

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

The world's longest wildlife overpass provides Hilversum's critters with a safe alternative to trying their luck on the roadway.

The only quarter of the Old City not dedicated to a major world religion.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Five candy-colored villages on the Italian Riviera.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.