An unknown number of cholera victims are buried in two nondescript graves.

Historians and hobbyists head to this former French outpost for the annual Feast of the Hunters' Moon.

The large rock formation where the Shawnee prophet Tenskwatawa stood and encouraged his warriors during the Battle of Tippecanoe.

A bizarre house filled with an astounding array of collections.

A once-booming railroad left abandoned next to the Quinnipiac River marshes now intersects with a hiking trail.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

The haunting ruins of Jack London's dream house.

One woman's Viking Castle on Lake Tahoe.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Golden Gate Park's historic collection of plants.

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

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

This quaint archive of the silent era preserves and pays homage to a seminal moment in film history.

The former Naval shipyard is open for exploring - mostly.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

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

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

The most beautiful Taco Bell in the world even has surfboard parking.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.