This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

From Nunavut to Tierra del Fuego, you won't find any lighthouse higher than this one.

This restored opera house is named after a soprano known for tragic romance, exile, and a truly uncomfortable wedding.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

These markers are used to document elevation changes around the famed dam.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Experience a charming 1930s version of "infotainment."

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.

A unique shopping and dining park created from old shipping containers and filled with local businesses.

This former mining railroad is one of the best-preserved short lines in North America.

Small Nevada town embraced its designation as the "Armpit of America" with an Old Spice-sponsored festival.

One of the most remote spots in America and the first protected wilderness area in Nevada, named after an old legend.

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.

An Egyptian-revival style film house in Boise, Idaho.

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.

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

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

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.

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.

This Idaho state park boasts the tallest single-structured sand dune in North America.