This town named for the ancient God of War is home to fewer than a thousand people, but it's the birthplace of the Greek Revolution.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

A man's home is his castle.

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."

A house built from trash known as the poor man's Hearst Castle.

An eccentric folk art landmark made out of discarded bottles by an inspired "grandma."

A private home built to resemble the shape of a microscopic creature.

Live long and prosper in Tennessee.

Giant instrument-shaped home in Fayetteville, Georgia.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

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

A celebration of once forgotten materials.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

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.

On a quiet suburban street stands a peculiarly decorated house covered in mosaics.

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

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

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

A folk art mecca famous among outsider art fans.

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

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.