Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

A beautiful 62-acre Catholic shrine and botanical garden.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

Home to the only outdoor municipal elevator in the United States.

An institution that preserves the history of institutionalization.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

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

Outsider art or homage to aliens?

One woman's Viking Castle on Lake Tahoe.

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

The headquarters of a secretive order is also a beautifully-designed park.

An extensive collection of ancient Egyptian artifacts and mummies.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

This small cemetery is all that remains of Atlanta's first Black communities.

The world's first time capsule lies behind a welded steel door in Atlanta.

This angular brutalist playground turns playtime into modern art time.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

Secret gardens just a few miles from downtown Atlanta.

The only museum of sake in the United States is nestled in an unlikely California college town.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

Dive bar built out of the remains of a whaling ship.