Along this stretch of beach in Denmark resides several massive bastions of energy.

This huge industrial sculpture looks like a UFO and a factory had a baby.

Four alabaster giants contemplate the tides on the shore of Denmark.

These old World War II fortifications have been transformed into an unusual equine attraction.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

A fascinating and enormous collection of natural history exhibits stained by a dark colonial legacy.

A jazz band formed by African water animals in the heart of Flemish Brabant.

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

Museum preserving torture methods from the past.

The former headquarters of history's oldest megacorporation.

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

Amsterdam's former hotspot for public executions and dissections.

Europe's official "zero-level," the equator of elevation.

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

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Where royalty waits in the height of luxury.

A beautifully eclectic mix of architectural styles.

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

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

This plaque marks the former home of one of the first women physicians in the Netherlands.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

Despite centuries of architectural innovation, this French castle is being built like it's the 13th century.