The first Protestant church in Arizona and only Gothic Revival style adobe church in the world.

This church on a Tohono O'Odham reservation has stood since 1797.

A stone pillar marking the location of the westernmost battle of the American Civil War only honors one side of the conflict.

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

Hidden on a cattle ranch in Arizona, this bookstore has been celebrating Southwest literature for more than 40 years.

Stairs often replace streets on the steep slopes of this old mining town.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

A motel dedicated to Southwestern nostalgia.

This historic national park is covered in the stunning ruins of red rock pueblos.

See massive fossils that are over 200 million years old in northeastern Arizona.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A beautiful geyser under environmental threat.

A beautiful 62-acre Catholic shrine and botanical garden.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Stroll through a wonderland of stupendous moss-covered trees.