Travelers exchange letters with woodland creatures at this mini post office.

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

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

Olfactory delights in San Francisco's Botanical Gardens.

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.

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

Golden Gate Park's historic collection of plants.

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

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

A century and a half of research in the sciences and natural history, still going strong.

Over 315,000 preserved amphibians and reptiles in jars.

This (occupied) house is 10 feet wide and full of spite.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

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

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

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

Once the gateway to the utopian dream-village of a Civil War embalmer.

Where the alchemists dream of transmuting base metal into gold was actually achieved.

An overlooked and unassuming engineering marvel.

This print shop boasts one of the largest pinball arcades in San Francisco.

Inside this museum, the history of the Walt Disney Family empire is on full display.

This restaurant offers the original California cuisine.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

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