This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

Ethiopian standing stones featuring remarkably preserved carvings of swords and people.

A geological bull's-eye visible from outer space.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

This might just be the TARDIS of bookstores.

These ruins are all that's left of the former Alabama State Capitol.

An emerald-green grotto just a short trip from Austin.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

A park full of outsider art, created by college students studying outsider art.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

The sign at the garden gate reads: "These Plants Can Kill."

What is it about mushrooms that makes people wish they lived inside of them?

A four-hour holy-rolling, Hallelujah-shouting, Southern gospel service, rendered as a country market where "All Is Welcome, Jews, and Gentiles."

This fairytale-like structure is the last turf church ever constructed in Iceland.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

The attic and basement house two museums stuffed with oddities like swallowed spoon handles and a shrunken head.

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

A historic bridge with a lovely acoustic anomaly.

Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

A railroad magnate's replica village has become home to a genetic seed bank for rare breeds of livestock.

Unicorns, elephants, and bears, oh my!