Junkbots and mud babies are the masterpieces in this fantastically sci-fi art museum.

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

Astounding collection of coin-operated games and automata.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

A promotional sun clock on the site of San Francisco's great raceway.

This municipal playground was co-created by the father of one of the most playful characters ever.

The oldest lawn bowling club in the United States.

San Francisco’s condensed garden of incredible plant growth.

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

San Francisco’s century-old Christmas Tree.

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

A miniature view of the park, caught in time.

The best place in the park to test out your throwing arm.

A monumental cross hides in the trees in Golden Gate Park.

These subterranean storage areas hold emergency water reserves.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

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

Tiki luxury on Nob Hill.

An overlooked and unassuming engineering marvel.