Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

This metal disk commemorates the birth of a historic American holiday.

This memorial to the Mercury Seven astronaut stands at the site of his former elementary school.

The original place where water met land in the City by the Bay is outlined in brass.

A porcelain company's former dumping ground, completely covered in pieces of collectible ceramics.

A sparse, solitary sequoia still stands as a living tribute to the famous conservationist who planted it—but it's dying.

Three plaques mark the spot where the "forgotten father of broadcasting" worked.

A mysterious monument covered in a binary code marks the heart of tech.

The oldest house in the capital of Silicon Valley.

A lonely monument to the original Silicon Valley tech campus.

This 252 step staircase offers stunning views of San Jose.

This granite rock face is named for the magnificent reflection that occurs when the sun hits it just right.

Today's aerospace industry can be traced back to one man and his gliders.

Cherokee alphabet, proof of ancient North American Jews, or just a hoax?

The humble gravesite of the man who failed to cash in on his Pepsi-cola goldmine.

The wooden house where the jazz great learned to play the piano.

These eerie outliers of the lightning bug family glow a mysterious blue color.

The largest Star Wars collection in the world is its own galaxy of collectibles.

Travelers exchange letters with woodland creatures at this mini post office.

A private home built to resemble the shape of a microscopic creature.

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

The sole surviving relic of the San Francisco neighborhood cobbled together from old horsecars and streetcars.

A former hardware store near Yerba Buena is the official home of California's history.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.