This natural marble cave is one of only five national monuments in Oregon.

Home of Howard Hughes' Spruce Goose.

Shakespeare has been brought to life in this open air theater for the better part of a century.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A blacklight journey through a celestial art exhibit.

This sparsely populated town offers a look back in time.

A natural formation that resembles a camel resting in the New Mexico desert.

The remains of a historic ranch house that witnessed the Civil War battle dubbed the “Gettysburg of the West.”

Setting this massive marionette aflame rids Santa Fe of doom and gloom for another year.

The building stands within a quiet, postcard-perfect New Mexico village.

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

A sprawling collection of over 106,000 toys from around the world.

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

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

A multi-storied adobe complex has been inhabited for more than a thousand years.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to the alleged Roswell Incident.

Supposedly Satanic numbers adorn this preserved submarine sail.

A museum dedicated to the history and art of staying clean.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

Home to the deepest rift anywhere on Earth.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.