Home to the deepest rift anywhere on Earth.

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

The largest outdoor art gallery in the Northwest United States.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A tunnel with windows, so you don't miss out on the impressive views.

The longest continuous lava tube in Oregon.

The world's last remaining store of its kind.

Man-made geyser that rises to the exact height of the Gateway Arch.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

An urban forest overtakes what was the greatest failure of utopic urban housing.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

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

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

Rare and gorgeous birds abound in this protected wildlife sanctuary.

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

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

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

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