Eons old volcanic activity created one of the most stunning rock formations in the United States.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Quite simply the largest tree in the world (by volume).

Tiki luxury on Nob Hill.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Olfactory delights in San Francisco's Botanical Gardens.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Venue for strange sideshow displays and musical acts.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

America's most famous piece of self-built architecture.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A psychedelic labyrinth on the San Francisco bay.

This giant ice cream cone is the last remaining icon of a Salt Lake City staple.

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

A quirky old tree covered in tokens, cans, and bottles of wishes.

Eat burgers beneath gargantuan taxidermy and thousands of dollar bills in Utah's oldest continuously-operating bar.

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