Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This collection of 80 polarizing foods aims to challenge your subjective notions of repulsion.

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

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

The statues commemorate the legendary mass killing of escaped circus monkeys.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

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

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to the alleged Roswell Incident.

A sprawling collection of over 106,000 toys from around the world.

Ever wanted to can Spam?

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

A stockpile of childhood lunch pails turned collectibles.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

A rusted metal giant pays tribute to Birmingham’s industrial past.

A treasure trove of rare and exquisitely detailed antiques

Tiny historical streetcars wind through a small scale version of Crescent City in this whimsical train garden.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

A Tucson museum and performance space full of found-object movable sculptures.

A self-built castle made by a mysterious man.

Monsters and miniatures are held in equal esteem at this wondrous museum.