Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

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.

The largest permanent Monopoly board makes one of the longest games even bigger.

This massive redwood tree has a hole in the base big enough to drive through.

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

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

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

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

The rocks in this arid basin leave trails of movement behind them.

An alien landscape on the banks of the Aegean Sea.

Ancient Greek oracle of the dead.

Ingenious bakery opens up the first Cupcake ATM at their flagship location in Beverly Hills.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

Tiki luxury on Nob Hill.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

Hidden in the Santa Ynez Mountains off Highway 154, this tiny restaurant once served as a stagecoach stop.

An Italian restaurant became a rock-and-roll hangout and the lair of the "Hollywood vampires."

At this 1940s-era neighborhood favorite, you can still drink a cherry phosphate.

A plaque and memorabilia collection mark where A&W got its start.

This bakery sits on the site of the Black Panther Party's first headquarters.

Experience the glam side of air travel without leaving the ground at this speakeasy.

These elevated trucks were put in place as a middle finger to The Man, but are now considered folk art.

Site of a former hidden treehouse in New Orleans.

The crumbling ruins of this southern American fort have survived storms, war, and cults.