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

The seamy, underground secrets of Portland's criminal past.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

On the Oregon coast there is a natural hole that seems to be draining the sea.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A psychedelic labyrinth on the San Francisco bay.

A huge musical instrument played by the ocean.

In the heart of Brigham Young's promised land sits a festering plot of industrial ruin that has been claimed by society's outcasts.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

Dubbed the "Blade Runner dragon," this buzzing neon sign is a beloved local icon.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

A replica that won't float away.

Dig for your own trilobites in this goldmine of invertebrates.

A house carved into a rock in the 1940s.

A small flooded ghost town with a few scattered structures remaining.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

Largest man-made excavation on earth!