This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

A museum devoted entirely to the rattlesnakes and snake-related art.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A unique geological area spiked with wind-carved rocks that resemble teepees.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

"I did this all while you were watching TV."

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

These aggressively sustainable art homes look like something out of 1970's science fiction.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

A museum dedicated to the alleged Roswell Incident.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This fireplace-turned-monument pays tribute to the assassinated U.S. president.

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

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

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

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

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

This Old West prison built into the side of a cliff was said to be inescapable.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

The cinder cone volcano with a less than complimentary name.