A kitschy stop on the way to Zion National Park.

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

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

The fifth-longest natural arch in the world, and the longest outside China.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

Two creeks flow out of either end of this canyon in opposite directions.

Only a few signs remain of the buried Colorado mining town that supplied the uranium for the first atomic bomb.

A river runs through this remote valley in a very unexpected way.

Oddly shaped rock formation, misassociated with a nearby utopian community.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

Thousands of years ago, Indigenous people painted images onto these canyon walls that are still on display today, provocative, mysterious, and enduring reminders of the people who lived here long ago.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

More than 700 species live within this murky marvel of a swamp on California's coast.

One woman's Viking Castle on Lake Tahoe.

Despite being a perfectly pleasant place to be, Loyalton can't seem to attract any visitors.

The viewpoint for this attractive, off-the-beaten-path waterfall is reached by a paved, wheelchair-accessible trail.

Massive prehistoric mammals used these stones as oversized scratching posts.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

The haunting ruins of Jack London's dream house.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A winding path built in secret on the edge of the continent.