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

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

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

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

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

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

A reproduction of earth's many biomes.

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

A self-built castle made by a mysterious man.

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

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

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

A massive bur oak tree believed to be some 500 years old is the centerpiece of this quiet urban greenspace.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

The murals have transformed a residential alley into a vibrant drive-through gallery.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

This family driveway also serves as the highest point in Illinois.

The clothes-washing king doubles as a community center with some unusual features, including an aviary filled with finches.

This folk art wall claims to be the world's one and only memorial to the bygone age of hippies.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

This deceivingly ordinary warehouse hides an enormous collection of pop culture treasures.