Treehouse motel and treehouse-building school.

A chance to sleep among the firs and pines of the Oregon forest.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

This surreptitious shop is only open five hours per week.

This print shop boasts one of the largest pinball arcades in San Francisco.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

A tribute to the artist and activist who created the rainbow pride flag.

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

Playable, historic pinball machines fill this Alameda museum.

This mysterious series of teeny guerrilla installations sheds a whimsical light on street art in Oakland.

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

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

If you dial the number in this abandoned office window "Sam Spade’s" secretary will ask you to leave a message.

The only parking meter in the entire town, it is surrounded by 100 free spaces.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

This giant squid sculpture sits near the spot where a real-life specimen was captured in the late 19th-century.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

Lucha Libre (Mexican Wrestling) themed taco shop.

These unusual houses look like giant boats that washed ashore on a residential street.

What began as an illegal art installation has become a symbol for unity, ocean awareness, and coastline preservation.

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

Oldest building in California still in use.