Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

An awe-inspiring giant blue whale jaw bone stands in the center of this Dutch island.

Nestled in the woods lies this land art project: a hybrid between park, maze and natural monument.

The tallest mountain in mainland Netherlands isn't actually very tall.

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

The highest point in Belgium is a staircase to nowhere.

An astounding collection of taxidermy, fossils, skeletons, and even a few strange live beasts.

Museum in a swimming pool where the water still flows.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

This Dutch statue is a monument to the fictional shrew who brought doom to the city of Stavoren.

While most bridges allow roads to pass over water, this one allows water to pass over a road.

The struggle of a small Dutch island against the sea.

Hop aboard a charming bog train to explore this rare open-air museum of peat.

This giant radio telescope would be a rusting ruin if it hadn't become such a beloved relic.

A radio telescope for listening to the stars, based in one of the cloudiest countries in the world.

Remarkably preserved body discovered in a peat bog.

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

This steel frame is a skeletal mirage of a lost 16th-century stone building.

Home to the world's oldest functioning orrery.

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

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

A map store filled with original Cold War era Russian maps of the world.

A unique seaside cave where Aleister Crowley faked his own death.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.