This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

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

What is it about mushrooms that makes people wish they lived inside of them?

A castle built by an eccentric medieval enthusiast in rural Ohio.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

One man's ambition created this psychedelic log home.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

An abandoned relic of the city's failed experiment with below ground transit.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

Visible below the waves are memorials to the city's Gold Rush dead.

A clear blue swimming hole with hidden caves, still unexplored.

This charmingly homemade amusement park has been growing for 40 years.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.