This painted marvel is San Francisco's 400-foot ode to urban biking.

A tribute to the artist and activist who created the rainbow pride flag.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

The oldest alley in San Francisco is paved with a reminder of the city's original shoreline.

This teeny-tiny park built by a San Francisco man in 1962 is mostly stairs.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

A free, public museum dedicated to the fascinating science of sight.

A speck of nature and art in one of San Francisco’s most notorious neighborhoods.

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

Russian history in San Francisco.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

The miraculous hydrant that saved the Mission District in 1906.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

An essential stop before plundering, BYO Cutlass.

This museum explores the history of the book, from scrolls to mass-produced objects through tools, stories, and massive cast-iron binding machinery (some of it operational).

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

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

Playable, historic pinball machines fill this Alameda museum.

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