California's longest-running tourist attraction is a stump.

This California family's ancestral melon is sold only here.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

A fire lookout atop a glacial pinnacle is reached by climbing three vertiginous flights of stairs.

The timepiece that exonerated a labor radical accused of a parade bombing that killed ten people.

This secluded date farm can be reached only by following a bumpy, single-lane desert road.

Home of the "Father of Forestry."

The oldest structure in a beachside California city was built to serve eight students.

French prisoners carved these boats from the bones of their meat rations.

Someone really, really wanted to save this fast-food icon from demolition.

These six walrus head statues harken back to a time when this area wasn't far from the oceanfront.

Social saloon from a scrapped trans-Pacific 19th century steamer.

Check out a shovel along with your Shakespeare.

This historic aviation building is now a museum owned and operated by Disney.

Working mining and drilling equipment demonstrate 150 years of energy history.

The first privately-owned space capsule to orbit and land carried a secret payload: a wheel of Le Brouère.

The oldest Naval cemetery on the West Coast.

This Alamo Square mansion is rumored to have hosted satanic rituals and other occult practices.

One of only five observatories in the world built to measure the Earth's wobble.

Two pillars set 10 paces apart commemorate the "last notable American duel."

Abandoned landscape once home to "the world's largest winery."

The final resting place of the songwriter who penned “Take Me Out To The Ball Game."

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

A sparse, solitary sequoia still stands as a living tribute to the famous conservationist who planted it—but it's dying.