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

A sanctuary for sickly, stray, or wounded donkeys.

In the Netherlands, one of the world's largest private car collections can be found.

One of the largest burial mounds in the Netherlands and Belgium.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

The struggle of a small Dutch island against the sea.

The 20-mile causeway that separates the Netherlands from the sea.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

The Rozenberg wind wall in South Holland makes for smooth sailing through the Calandbrug canal.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

This enormous storm barrier is one of the largest moving structures on Earth, with each arm taller than the Washington Monument.

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

A statue of the second-tallest Dutchman in history.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

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

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

Live out your childhood construction fantasies in this one-of-a-kind gyrating hotel.

Visit the ancient, mysterious Roman catacombs ... in the Netherlands.

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

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

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

The tallest waterfall in the Netherlands is a lovely, stepped feature that is only 50 feet tall.

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

A true Valhalla for cactus and succulent lovers.