A store that sells all manner of bones, insects, and animal curiosities.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This shop specializes in oddities and Victorian-inspired wonders.

Gold Rush-era tombstones line the park's paths.

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

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

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Art in the form of a winding, man made crack in stone.

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

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

San Francisco’s century-old Christmas Tree.

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

The oldest lawn bowling club in the United States.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

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

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

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

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

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

Guns that have been defending San Francisco since 1904.

A monument to the love people have for their pets.

The restored and active Victorian-era final resting place of San Francisco.

Visible below the waves are memorials to the city's Gold Rush dead.