An isolated dive site teeming with cnidarians.

A cemetery housing wild west legends in South Dakota.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

An experimental, automotive replica of Stonehenge.

His discovery kicked off the Gold Rush. One of the hands on this commemorative statue points to the spot where he found the precious metal.

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

A grave dedicated to the pioneers who settled California.

A middle school sports field that many believe was the true location of the first successful powered flight - and not by the Wright Brothers.

The only standing town in the United States that early Chinese Americans built for themselves.

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

A replica of the first public theater built in California.

Art Deco stylings conceal the true nature of this bridge.

Built in 1895, this bed and breakfast was once a hospital that served an early 1900s Gold Rush boomtown.

This fully intact Neoclassical-Greek Revival style firehouse operated until 1938.

California's oldest existing theater building hosted an impressive cast of celebrities, including hosting Mark Twain's first lecture.

The world’s first stop-motion film was created on the racetrack outside this building.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

"You don't need a rocket scientist to build a steam engine, but we've got one." -Museum docent on the credentials of a restoration volunteer.

A rich history stashed behind an unassuming door in the heart of Gold Country.

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

Hidden in a hotel parking lot is a strange historical plaque erected by an obscure fraternal society.

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

The modest home of the very immodest dancer who cost a king his crown.

The last of a gourmet supermarket chain, this store helped spark California's Food Revolution.