A strange house built only at night, with rumored mystic inspiration.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

A modern mechanical planetary system, part of a 10,000 year clock.

Visible below the waves are memorials to the city's Gold Rush dead.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

Tiki luxury on Nob Hill.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

The only theatre in the world constructed specifically for sound movement.

A huge musical instrument played by the ocean.

This private residence was the template for one of the most beloved television homes of all time.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Its buzzing collection honors vibrator history.

A psychedelic labyrinth on the San Francisco bay.

The poems Nathaniel Hawthorne and his wife Sophia etched into its windows are still visible today.

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

This beautiful architectural gem was the first waste treatment facility in Boston.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.