This fantastical waterfall is hidden in a cave located in a cracked cliff.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This former prison is an Art Deco masterpiece with a past full of civil rights flashpoints.

This state park was once an important Native American cermonial center.

A 1950s eccentric's vision of Eden preserved as a hiking trail.

The only Florida state park with publicly accessible caves.

Bad farming practices caused this unnatural natural wonder.

This folk art compound was built by a fortune teller on the advice of three people from the future.

Wild West history in Hollywood style.

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

Rare collectibles from automated musical instruments to 250 unique automobiles.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

A shrine to a skeleton saint in the city of angels.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

Magical-looking cottages that inspired one of the most famous animated films ever.

A common entry point to the Griffith Observatory trail holds its own wonders.

"Looks so real, it's scary!"

Historic funicular railway, believed to be the shortest railroad in the world.

World-famous, Pink's still manages to keep its prized cult fetish status.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

This weird abode has inspired everything from the "House on Haunted Hill" to a robot hunter's pad.