The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

A piece of outsider public art accompanied by a strange urban legend.

A science teacher's dream.

A self-built castle made by a mysterious man.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

The largest self-built castle in the U.S., six decades in the making.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

Less a museum than a bizarre fantasy world created by artists and engineers.

A beautiful Victorian-era cemetery, complete with a miniature village.

This quirky curiosity shop takes its cues from the world's bazaars.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

A once grand hotel is being retaken by the wilderness it once capitalized on.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A museum dedicated to exhibiting remarkable outsider art.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

A modernist landscape of water and sci-fi concrete.

One man's ambition created this psychedelic log home.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

Where beautiful signs live on forever.

The largest earthwork effigy in the world.