Home to a timed geyser created by complete accident.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

The largest island on the great salt lake is home to curious creatures and strange stories.

See just what life was like in a 19th-century prospecting town.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

This museum glorifies the humble potato.

Home to the deepest rift anywhere on Earth.

Supposedly Satanic numbers adorn this preserved submarine sail.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

People escaping slavery passed through the oldest house in Lombard, Illinois on their northbound journey to freedom.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.

These aggressively sustainable art homes look like something out of 1970's science fiction.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.