Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

The oldest lawn bowling club in the United States.

A playing field for a popular French past time can be found tucked away in a quiet corner of Golden Gate Park.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.

Over 315,000 preserved amphibians and reptiles in jars.

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

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

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

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

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

Its buzzing collection honors vibrator history.

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

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

One of the deadliest American air disasters is nearly forgotten in Brooklyn.

A decommissioned military complex that's now a modern industrial park.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

One woman’s obsession gave birth to this lovely oddity at the Boston Public Library.

Historic Hull Street was actually the first street with a proper name in the Boston area.