This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A madman's personal garden filled with 1,000 sculpted heads.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

After he picked up a brush at the age of 47 this simple barber turned his entire home into a canvas.

This Quebec estate is home to the elaborate gardens of a self-taught horticulturist.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

One man's love of sea life and art has turned his home into a temple of outsider island art.

A mysterious castle built as a monument to lost love.

In Florida, these naughty monkeys live on their own mini-monkey Alcatraz.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

A unique sculpture park that specializes in the huge and bizarre.

"Mock all and sundry things, but leave the saints alone."

One man’s hobby is another man’s world of metal wonders.

This house was largely built out of hundreds of thousands of discarded glass embalming fluid bottles.

Three buildings constructed of over 25,000 multicolored glass bottles.

An 80-year-old house built out of newspapers.

A massive sea stack famous for its appearance in The Goonies.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The snowbirds here are circus sideshow performers.

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

Annual celebration commemorating the 1965 sighting of strange lights in the town.

The oldest continuously operating farm in New York State.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.