America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

Whimsical cookie-themed plaques mark the birthplace of the Fig Newton.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

This giant Boston statue of Mary is standing on a globe to show her power over the universe.

Museum dedicated to awful artwork.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

This unassuming stone commemorates a condiment factory gone up in smoke.

A cave dug by a man directed by ghosts to find pirate treasure.

Massachusetts memorial to murder victim Elizabeth Short near the spot where she was born.

This headstone-like marker inscribed with three words has been an utter mystery for over a century.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

"I did this all while you were watching TV."

Live long and prosper in Tennessee.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

An outsider art duo's yard has been turned into a whimsical public gallery.

This fairytale-inspired cottage was created by a university literature professor.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

This home is decked out like a psychedelic explosion of colors and bowling balls.

A folk art mecca famous among outsider art fans.

A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

This softly rounded mansion was built without corners not to avoid evil spirits, but to make them more comfortable.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.