San Francisco's first World's Fair, dedicated to the wonders of California.

A 1920s speakeasy that had rum runners racing up and down the shores of California.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

A miniature view of the park, caught in time.

A historic hotel in an old California railroad town with a rowdy reputation.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Where the polar bear watches over everything, and every drink is a double.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

A comprehensive collection of Pez dispensers.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

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

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

World-famous, Pink's still manages to keep its prized cult fetish status.

A 16th-century footpath said to be haunted by a young girl that died trapped within its misshapen old house.

This sculpture commemorates Edinburgh's sister city and their respective celebrity dogs.

Yo, Adrian!

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The prototype for all Nazi concentration camps.

An Irish Memorial commemorating those who perished due to potato blight.

This painted marvel is San Francisco's 400-foot ode to urban biking.

The commemorative stone column conceals a secret laboratory.

Once home to a Scottish baronet, this 18th-century historic house doubles as a legendary art space.

This hidden green space is the city's second largest conservatory.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”