A plaque outside the San Jose airport commemorates the insect's arrival to the West Coast.

It is locally loved and ridiculed for literally looking like poop.

The largest permanent Monopoly board makes one of the longest games even bigger.

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

The world's most famous donkey lives in this pen.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

A hidden world of exotic succulents and cacti.

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

A large instrument played by the wind.

A comprehensive collection of Pez dispensers.

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

A winding path built in secret on the edge of the continent.

A monument to the love people have for their pets.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

An overlooked and unassuming engineering marvel.

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

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

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

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