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

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

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

The cinder cone volcano with a less than complimentary name.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

An urban laboratory.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

A spiritual vortex among the red rocks in Sedona.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

A reproduction of earth's many biomes.

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

A geological mystery on Camelback Mountain.