A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

A private home built to resemble the shape of a microscopic creature.

This turn of the century masterpiece has a mysterious goaty interloper.

The legendary statue-hating superintendent of Golden Gate Park is honored with... a statue.

Olfactory delights in San Francisco's Botanical Gardens.

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

The remains of a 12th-century chapter house in Golden Gate Park.

Golden Gate Park's historic collection of plants.

The world's brightest bioluminescent bay.

Remnants of a storybook amusement park hidden behind a strip mall.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

Furniture tries to escape an abandoned building in San Francisco.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A comprehensive collection of Pez dispensers.

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

The most confusing clock in New York.

Elevated freight railway turned wildly successful urban park.

An artist's cute bronze subway sculptures belie his violent artistic past.

Taxonomy experiment known for quirky collections.

3,200-square-foot mural inside Dartmouth Library depicts the history of America with images of human sacrifice, ancient gods, and other unspeakable terrors.

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

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

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