"Iron Age" creatures fill this huckster's rusted metal sculpture garden.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

An oddly poignant roadside attraction celebrating American folklore.

Five acres of divinely inspired folk art.

A bedazzled house and crown "jewel" of outsider artist Loy Allen Bowlin.

This large open-air museum showcases the ordinary lives of the people of the Netherlands and pre-industrial crafts and practices.

This work of engineering is imbued with elegance and ingeniousness.

The gondolas let you glimpse a bird's-eye view of one of the world's highest capital cities.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

A unique botanical garden housed in three giant geodesic domes.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

Where beautiful signs live on forever.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The subtle science of a master molecular gastronomist.

A museum celebrating the self-taught artist-environment builder.

Spiral-bound community recipes and antiquarian gems mingle at this small East Village shop.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

A giant owl named Rocco oversees mythical woodland creatures along these charming mountain trails.

A museum entirely dedicated to Bergamo’s tradition of puppetry.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.