Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

This Luxembourg cave is covered in cryptic looking marks left by mining activity.

Devilish masks, handicrafts, and pieces of old buildings create a snapshot of life in a historic Alpine region.

An ancient monastery, a locked room, and a mysterious book heist.

This collection of French root art looks like an indoor fairy wonderland.

The remains of this castle, known as the Witch’s Eye, watch over the Thur Valley.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

A series of haunting wooden totems are hidden in the woods surrounding a German environmental center.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

A curious collection dedicated to human and animal anatomy and pathology.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

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

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

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

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

A dream-like maze full of strange art, surreal spaces, and fantasy landscapes to get lost in.

Artwork tucked within the trees greets visitors with surreal sonic experiences.

What was once a bustling mining installation is now a bustling hub of contemporary art.

This collection of solar timekeepers includes the world's first digital sundial.

This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.