A breathtaking 19th-century trail overlooks Lake Tahoe.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

Bits and pieces from the ill-fated Donner Party's winter cabins.

The flow from this waterfall sometimes comes out of springs below its rim.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

The oldest orange tree in California spawned a generation of citrus farmers.

Home of what was the largest hydraulic mine in the world, producing gold and the first diamonds in the U.S.

This downtown Dallas art installation is always on the lookout.

Home to a full-scale replica of the Ezekiel Airship, an aircraft that allegedly flew in 1902—a year before the Wright brothers took to the skies over Kitty Hawk.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

Known as one of America's most beautiful public restrooms.

A trash dump made beautiful by nature's power.

Celebrating the transformation of trash into objects of beauty.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

The drama of nature in full effect in this Nevada State Park.

A fine mixture of the old and the new topped with an art deco neon spire.

The oldest continuously operating Catholic school west of the Mississippi.

Once the largest town in eastern Yuba County now sits abandoned.

The tallest bridge in California was constructed for a project that was eventually cancelled.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."