This makeshift concrete bunker is an unusual reminder of the Cold War.

A former hen house turned curiosity cabinet displays one man's lifelong fascination with cannibalism.

A Chinese meditation center in the middle of rural Sweden, partly funded by a member of ABBA.

Two monstrous faces loom over a village in Czechia.

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

Europe's largest natural bridge has a 19th century royal chateau built into its side.

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

This historic little railroad runs through some of the most beautiful scenery in Germany.

In memory of The Blur Building, the temporary exhibition pavilion of vaporous nothingness.

This small museum displays a collection of outsider art and scale models of past "treatments" for mental illness.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

150-year-old satirical tableaus made from stuffed frogs.

A mythically themed self-built sculpture park.

Enormous, fluffy dogs frolic around this museum dedicated to a legendary Saint Bernard.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

A historic observatory precariously perched at the "Top of Europe."

Large Hadron Collider and the Birthplace of World Wide Web.

These spooky and unusual stone formations create an underworldly landscape.

Caves famous for the dragon-slaying saint who lived there.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

An amazing collection of rare wind instruments where visitors can give the iconic Swiss Alphorn a toot.