One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

America's only nuclear missile silo open to the public.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

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

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

A reproduction of earth's many biomes.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

These free-roaming horses were once destined to disappear from the land.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

A self-built castle made by a mysterious man.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

A museum and tribute to a brave profession.

A geological mystery on Camelback Mountain.

A towering bronze statue memorializes the founding father of postwar American conservatism.

This love letter to Poland serves bracing dill pickle soup and plump pierogis.

A former department store turned into a quirky restaurant.