A modern mechanical planetary system, part of a 10,000 year clock.

One of few lasting examples of the brief octagon craze that developed into folly.

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

An unassuming grey box sitting on San Francisco's Pier 17 is a "sky diary" of the coastal city's temperamental weather.

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

The only visible piece of San Francisco's most famous shipwreck.

Its buzzing collection honors vibrator history.

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

Floating man-made island and upscale restaurant.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

This quaint archive of the silent era preserves and pays homage to a seminal moment in film history.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Noble beasts perhaps, but not the Emperor's dogs.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

A former taxidermist has turned his old shop into a folk art mecca.

Recovered from the brink of extinction, at home in the Financial District.

A 140-year-old castle with underground caves hidden in San Francisco.

Handmade treasures from around the world.

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

Underground farm located in a former bank vault deep within the bowels of Tokyo's business district.

A magical place that lets you play in and explore the world of Studio Ghibli.

Half of a house.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.