A one-of-a-kind collection of a unique medium.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A huge musical instrument played by the ocean.

A museum in rural Utah documents the history of the Japanese Americans who were forcibly relocated there.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

One of the most unusual geological features, recognizable from a dozen hit movies.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

The rocks in this arid basin leave trails of movement behind them.

The location of the last stand of Charles Manson's doomsday cult.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

"Only the devil could play golf here."

A Canadian POW for German soldiers during WWII where prisoners hatched an elaborate escape plan.

A school teacher's massive and terrifying self-built castle.

The oldest landmark of Toronto is a testament to shifting sands.

Canada's subterranean Cold War museum has doubled as a movie set.

Little island known for its massive beachfront "flowerpot" pillars.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

This natural sea cave hides a small wonderland of natural turquoise beauty.

Rusty red sands line the shores of this Canadian Province.

A statue of the early navigator stands overlooking the land he first surveyed.

An ancient Viking village in North America that predates Columbus by 500 years.