Guns that have been defending San Francisco since 1904.

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

A monument to the love people have for their pets.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

San Francisco’s century-old Christmas Tree.

An overlooked and unassuming engineering marvel.

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

An essential stop before plundering, BYO Cutlass.

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

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

These subterranean storage areas hold emergency water reserves.

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

Faceless white figures loom over the city from the rooftop.

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

San Francisco's newly reopened hands-on science museum.

Floating man-made island and upscale restaurant.

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.

This single room has survived the centuries with almost no deterioration.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

A reproduction of earth's many biomes.

This folk art compound was built by a fortune teller on the advice of three people from the future.