At this barrel organ museum, history and live concert keep Dutch street organ culture alive.

At the base of this tower, a plaque marks the original center point of the Netherlands.

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

A condensed piece of China floating in a Dutch harbor.

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

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

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

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

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

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

A late-medieval Dutch castle with trick fountains in its whimsical water gardens.

A grassy pyramid named after a French battle.

Incredible labyrinth of man made caves.

This miniature take on the Kremlin is one Dutch man's retirement project.

A floating cat sanctuary on an Amsterdam canal.

Human figures and faces are carved into the sandstone surrounding this cave in Czechia.

Towering sandstone rock formations where 'The Chronicles of Narnia' was filmed.

A folk-art cottage and hotel straight from a Slavic fairy tale.

Tiny communists hammer away on the Olomouc Astronomical Clock.

This ruined castle perched atop a rocky peak is a great place for a hike.

A Cold War secret surveillance tower used to spy on radio communications.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.