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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

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

Floating man-made island and upscale restaurant.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

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

Recovered from the brink of extinction, at home in the Financial District.