The elegant manor house where Kaiser Wilhelm II lived in exile after World War I.

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

A lecture hall sink once used by Einstein and other noted physicists is now regarded as a strange science relic.

The gargoyles and grotesques of the 21st century are here—22 emoji built into a new building in the Netherlands.

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

An ancient Egyptian temple sits within a modern European museum.

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

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

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

This unique bridge physically lifts a piece of the road into the air to let boats pass by.

This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.

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

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

A statue of the second-tallest Dutchman in history.

The largest flower auction house in the world.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

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

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

A monument hidden in the woods built in 1938 as a getaway for a Dutch museum curator.

Two gravestones clasp hands over the religious divide.

This historical Netherlands fortress still bears the marks of its single siege.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

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