Originally a brothel during the Klondike Gold Rush, this bar once used dolls to denote when ladies were working.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

A monument commemorating the role of Alaska's native Tlingit guides in the Klondike Gold Rush.

A historic freight system that found the true gold rush is in tourism.

Cross the Continental Divide through an old railroad tunnel, and ride back to the top on a shuttle.

The only bridge in the United States where BASE jumping is legal without a permit year-round.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

This pop-culture shop also offers the chance to become part of their favorite tv show or movie.

Jail from the 19th century that was built by inmates.

New Plymouth, Idaho is the only U-shaped town in the United States.

This work of art by Matthew Mazzotta resides in this park dedicated to the first black legislator in Idaho.

The largest outdoor art gallery in the Northwest United States.

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

Boise State's stadium was the first non-green football field in the world.

A volcanic core jutting above the plain between the Snake and Boise Rivers, a marker identifies the reference point for all U.S. Government Surveys in Idaho.

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

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

A sharply wedged sundial marks the point at which each day in the United States begins.

Home to the deepest rift anywhere on Earth.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

Three generations of intrepid collectors display their curious artifacts in a homemade museum right next to the caves they discovered.