penelopepengin's User Profile - Atlas Obscura
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Green Valley, Arizona

Titan Missile Museum

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

Petrified Forest National Park

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

Biosphere 2

A reproduction of earth's many biomes.
Peach Springs, Arizona

Caverns Grotto

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.
Williams, Arizona

Flintstones Bedrock City

An homage to everyone's favorite prehistoric cartoon family.
Winslow, Arizona

Apache Death Cave

A stealthy Apache hideaway that became the haunting site of a mass grave.
Phoenix, Arizona

Mystery Castle

A self-built castle made by a mysterious man.
Casa Grande, Arizona

The Domes

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.
Yavapai County, Arizona

Montezuma Castle

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

Yayoi Kusama Firefly Infinity Mirror Room

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.