This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

A long abandoned hospital building on the outskirts of NYC.

A hotel and restaurant serving as the mecca of kitsch.

Stroll through a wonderland of stupendous moss-covered trees.

A hand-built folk art installation covered with messages of God's love.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

America's most famous piece of self-built architecture.

A toxic ghost town sitting atop a massive coal fire.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A strange house built only at night, with rumored mystic inspiration.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

Whimsical artist house in the New Jersey woods.

Mysterious rocks that ring musically when struck.

A park full of outsider art, created by college students studying outsider art.

This park contains a number of standing stones meant to heal and inspire.

A field of nothing but boulders which resembles a giant's gravel driveway.

Intricate storybook scenes are tucked inside these shadow boxes, which are tucked inside a library in the Pocono Mountains.

Secluded amid upstate New York’s Adirondack Mountains lies this subterranean emblem of a nation on the brink of nuclear war. And it's for sale.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.